​Butea Superba (Red Kwao Krua)

Butea Superba (Red Kwao Krua)

Product Name: Бутея превосходная, Butea superba, Rote Butea, Butea superba, Butea superba, بوتيا سوبربا, บูเทีย ซูเปอร์บา, Butea superba, Butea superba, Butea superba, Бутеа суперба, Butea superba, Butea superba, Бутея суперба, בוטיאה סופרבה

Synonyms: Бутея, Красная бутея, Красный клешневидный цветок, Пурпурная молния, Red Kwao Krua, Red Butea, Climbing Butea, Roter Kwao Krua, Butea rouge, Butea trepadora, بوتيا الحمراء, เครือกำลังช้างเผือก, กำลังช้างเผือกแดง

Used Parts: roots, tubers, leaves, stems, flowers, seeds, rhizomes — the most actively used part.

Main Indications for Use of Butea superba: Erectile dysfunction of neurogenic origin, erectile dysfunction of vascular origin, age-related androgen deficiency, idiopathic male infertility, chronic prostatitis, chronic pelvic pain syndrome, hypogonadism, asthenoneurotic syndrome, sexual asthenia, post-castration syndrome, psychogenic impotence.

Use of Butea superba in Mixtures and Complexes: Prostate adenoma, benign prostatic hyperplasia, neurocirculatory dystonia of hypotonic type, dyscirculatory encephalopathy, arterial hypotension, stage I hypertension, hyperlipidemia, post-infarction cardiosclerosis, metabolic syndrome, involutional depression, male osteoporosis.

Pharmacological Properties of Butea superba: androgenic, vasodilating, tonic, adaptogenic, antioxidant, androgen-modulating, anti-aging, neuroprotective, anti-inflammatory, immunomodulating, antidepressant, antihypertensive, hypolipidemic, aphrodisiac.

Dosage of Pharmaceutical Forms — Butea superba

Powder — Butea superba

Indications (Powder): Erectile dysfunction of vascular origin, age-related androgen deficiency, hypogonadism, sexual asthenia, idiopathic male infertility, chronic prostatitis, asthenoneurotic syndrome.

Standard Dosage (Powder): 1000 milligrams of powder once a day orally, 30 minutes before breakfast, in a course of 30 to 45 days.

Enhanced Dosage (Powder): 1000 milligrams twice a day orally, morning and evening, 30 minutes before meals. Recommended for persistent forms of erectile dysfunction of vascular and neurogenic origin, diagnosed hypogonadism, and male infertility.

Maximum Dosage (Powder): 1500 milligrams twice a day, no more than 3000 milligrams per day. Permissible under clinical observation for severe androgen deficiency, pronounced post-castration syndrome, and laboratory-confirmed low testosterone levels.

Preventive Dosage (Powder): 500 milligrams once a day in the morning. Recommended for men over 45 years of age with risk factors for androgen deficiency, chronic prostatitis, and prolonged stress loads. Course — 21 days with a 10-day break.

Pediatric Dosage (Powder): Use is not recommended. The minimum age and body weight of the patient for possible theoretical dose adjustment have not been established. Use in pediatric practice has not been studied.

Contraindications (Powder): Individual intolerance, hypersensitivity to plant androgens, severe arterial hypertension, heart failure of III–IV functional class. Data on contraindications during pregnancy, lactation, and in childhood have not been scientifically registered.

Side Effects (Powder): In case of overdose, short-term lowering of blood pressure, headache, insomnia, anxiety, and tachycardia are possible. Increased libido and erections have been scientifically registered, sometimes progressing to priapism.

Adjustment for Patient Body Weight: For body weight below 60 kilograms — reduction of dosage by 25%. For body weight above 90 kilograms — increase in dosage by 25%.

Preparation Method (Powder): Raw material: dried rhizome. The rhizomes are washed, cleaned of external bark, cut into fragments of 2–3 centimeters, dried at a temperature of 40–50 degrees Celsius for 48 hours. After complete drying, they are ground to a homogeneous powder using a mill. To obtain 100 grams of powder, 150 grams of raw rhizome are required. Particle fraction no more than 0.3 millimeters.

Storage Conditions and Shelf Life (Powder): Store in a tightly closed container made of dark glass or bioplastic, in a dry, dark place at a temperature of 5 to 25 degrees Celsius. Avoid exposure to direct sunlight and electromagnetic fields. Shelf life — 18 months from the date of manufacture. After opening the package, use within 90 days.

Dry Extract — Butea superba

Indications (Dry Extract): Erectile dysfunction of neurogenic origin, age-related androgen deficiency, hypogonadism, sexual asthenia, idiopathic infertility, post-castration syndrome, chronic prostatitis.

Standard Dosage (Dry Extract): 250 milligrams of dry extract (standardized for flavonoids and steroidal saponins) once a day, in the morning 30 minutes before meals. Course from 30 to 60 days.

Enhanced Dosage (Dry Extract): 250 milligrams twice a day, morning and early afternoon. Recommended for pronounced age-related androgen deficiency, decreased libido, prolonged absence of spontaneous erections, and laboratory-confirmed decrease in testosterone levels.

Maximum Dosage (Dry Extract): 500 milligrams twice a day, no more than 1000 milligrams per day. Used for persistent erectile dysfunction of vascular and neurogenic origin, androgen deficiency of II–III degree, and male infertility with pronounced decrease in sperm motility.

Preventive Dosage (Dry Extract): 100–150 milligrams once a day in the morning. Recommended for men over 40 years of age, with risk factors for hormonal imbalance, a sedentary lifestyle, and chronic stress. Course — 21 days with a 10-day break.

Pediatric Dosage (Dry Extract): Not used. Data on safety and efficacy in persons under 18 years of age are absent. Use in pediatrics is not permitted.

Contraindications (Dry Extract): Individual hypersensitivity, pronounced hypertension, malignant prostate tumors, unstable angina, severe heart failure. Data on contraindications during pregnancy, lactation, and in childhood have not been scientifically registered.

Side Effects (Dry Extract): When exceeding the dosage, the following have been registered: headache, insomnia, agitation, palpitations, priapism. In rare cases — dyspeptic disorders.

Adjustment for Patient Body Weight: For body weight below 60 kilograms — dosage is reduced by 20%. For body weight above 90 kilograms — increased by 20–25%.

Preparation Method (Dry Extract): To prepare 100 grams of dry extract, 600 grams of ground dried rhizome are used. The raw material is poured with purified water in a ratio of 1:10, extracted at a temperature of 60–70 degrees Celsius for 8 hours, drained three times. The filtrate is evaporated to a syrupy state at a temperature not exceeding 55 degrees Celsius, dried in a drying chamber to a dry extract state. The resulting substance is sifted and packaged in an airtight container.

Storage Conditions and Shelf Life (Dry Extract): Store in a tightly closed container made of dark glass or light-proof polymer, at a temperature of 5 to 25 degrees Celsius, in a dry place, away from heat, light, and electromagnetic radiation sources. Shelf life — 24 months. After opening, use within 60 days.

Tincture — Butea superba

Indications (Tincture): Sexual asthenia, erectile dysfunction of neurogenic and psychogenic origin, androgen deficiency, hypogonadism, post-castration syndrome, chronic fatigue syndrome, involutional depression.

Standard Dosage (Tincture): 25 drops of alcohol tincture in 50 milliliters of water once a day in the morning, on an empty stomach. Course of treatment from 21 to 30 days.

Enhanced Dosage (Tincture): 25 drops twice a day — morning and afternoon. Recommended for pronounced sexual dysfunction, decreased mood, male climacteric, and neurovegetative disorders in the perimenopausal period in men.

Maximum Dosage (Tincture): 40 drops twice a day. Used for persistent forms of androgen deficiency and severe manifestations of sexual asthenia in the absence of contraindications to alcohol. The course duration should not exceed 14 days.

Preventive Dosage (Tincture): 15 drops once a day, in the morning, against the background of increased mental or physical load. Preventive course — 14 days with repetition no more than once a month. Recommended for men over 45 years of age, with a sedentary lifestyle, during periods of intensive work loads or climate change.

Pediatric Dosage (Tincture): Not used. Contraindicated for children due to ethanol content. The minimum age for use has not been established.

Contraindications (Tincture): Alcoholism, organic liver lesions, liver cirrhosis, epilepsy, brain injuries, high blood pressure, malignant prostate neoplasms. Data on contraindications during pregnancy, lactation, and in pediatrics are absent in the scientific literature.

Side Effects (Tincture): When exceeding the dosage, an increase in blood pressure, anxiety, insomnia, tachycardia, and facial skin redness are possible. Rare cases of irritability and sleep disturbances have been recorded.

Adjustment for Patient Body Weight: Body weight below 60 kilograms — 15–20 drops instead of 25. Body weight above 90 kilograms — 30–35 drops.

Preparation Method (Tincture): To prepare 100 milliliters of tincture, take 20 grams of ground dry rhizome, pour with 100 milliliters of 70% ethyl alcohol. Infuse in a glass tightly closing container in a dark place at a temperature of 20–25 degrees Celsius for 14 days. Shake periodically. Upon completion of the process — strain through gauze, squeeze the residue, filter through a paper filter, store in a dark vial.

Storage Conditions and Shelf Life (Tincture): Store in an airtight dark glass container at a temperature of 5 to 20 degrees Celsius, away from light and heat sources, shield from electromagnetic fields. Shelf life — up to 3 years. After opening, use within 60 days.

Oil Infusion — Butea superba

Indications (Oil Infusion): Age-related androgen deficiency, erectile dysfunction of vascular origin, sexual asthenia, chronic fatigue syndrome, hypogonadism, post-castration syndrome, asthenoneurotic syndrome, dryness of genital skin, decreased sensitivity during sexual intercourse.

Standard Dosage (Oil Infusion): Externally: apply 2 milliliters of oil once a day to the skin of the pubic-groin area and the inner surface of the thighs, gently rubbing until completely absorbed. Course — 21 days.

Enhanced Dosage (Oil Infusion): Apply 2 milliliters of oil twice a day — morning and evening. Recommended for pronounced decrease in sensitivity, skin dryness, post-castration syndrome, and stress-induced libido disorders.

Maximum Dosage (Oil Infusion): Up to 3 milliliters three times a day. Permissible in the absence of skin irritation and contraindications. Recommended only under specialist supervision for resistant forms of sexual asthenia and pronounced skin dryness.

Preventive Dosage (Oil Infusion): 1 milliliter of oil once a day 2–3 times a week. Recommended for men over 50 years of age with dry skin, decreased sensitivity, prolonged stress, and reduced libido. Course — 14 days with a subsequent 7-day break, with possible repetition.

Pediatric Dosage (Oil Infusion): Not used. Use in pediatrics has not been studied and is not recommended.

Contraindications (Oil Infusion): Allergy to components, acute dermatoses in the application area, ulcers, abrasions, and skin damage. Data on contraindications during pregnancy, lactation, and in childhood have not been scientifically registered.

Side Effects (Oil Infusion): With prolonged use or individual intolerance, skin irritation, itching, redness, and a burning sensation are possible.

Adjustment for Patient Body Weight: Dose adjustment by body weight is not required, as the form is applied locally. However, with a body weight below 60 kilograms, it is recommended to use no more than 1 milliliter per application.

Preparation Method (Oil Infusion): To prepare 100 grams of oil, take 20 grams of ground dry rhizome and 100 grams of cold-pressed coconut oil. Combine the components, infuse in a water bath at a temperature of 50 degrees Celsius for 6 hours with periodic stirring. Then keep in a dark place at room temperature for 5 days. Strain, squeeze the residue, filter through a cotton-gauze filter. Pour the resulting oil into sterile vials.

Storage Conditions and Shelf Life (Oil Infusion): Store in a tightly closed dark glass container at a temperature of 5 to 20 degrees Celsius, protect from light and heating. Shelf life — up to 12 months. After opening, use within 90 days.

Gel — Butea superba

Indications (Gel): Erectile dysfunction of vascular and psychogenic origin, sexual asthenia, decreased penile sensitivity, involutional forms of hypoandrogenism, dryness of the penile skin, impaired microcirculation in the genital area.

Standard Dosage (Gel): Apply 1 gram of gel (approximately the size of a pea) to the skin of the penis, avoiding the glans, 20–30 minutes before the intended sexual activity. Use no more than once a day.

Enhanced Dosage (Gel): Apply 1 gram of gel twice a day — morning and evening. Recommended for pronounced vascular erectile dysfunction, impaired local circulation, cold penis syndrome, dryness and roughness of the skin in the external genital area.

Maximum Dosage (Gel): Up to 1.5 grams of gel three times a day, with an interval of at least 6 hours between applications. Used short-term for pronounced microcirculation disorders and resistant erectile dysfunction.

Preventive Dosage (Gel): Apply 0.5 grams of gel every other day to the groin area, avoiding mucous membranes. Recommended for men over 50 years of age with decreased libido, fatigue, as well as for athletes during periods of intensive loads. Course — 10–14 days with a 14-day break.

Pediatric Dosage (Gel): Not used. Use in childhood and adolescence is contraindicated. Safety and efficacy have not been established.

Contraindications (Gel): Allergy to components, fissures, erosions, or skin ulcers in the application area, inflammatory diseases of the external genital organs. Safety data during pregnancy, lactation, and in children are absent.

Side Effects (Gel): Local reactions: burning, redness, itching, short-term sensation of warmth. In case of overdose — persistent skin irritation, contact dermatitis.

Adjustment for Patient Body Weight: Adjustment is not required, as the form is applied locally. In patients with a body weight below 60 kilograms, it is recommended to limit the volume of application to 0.5–0.7 grams.

Preparation Method (Gel): To prepare 100 grams of gel, take 5 grams of dry extract of Butea superba, 90 grams of gel base (hydroxyethylcellulose in 50% glycerin), and 5 grams of distilled water. Pre-dissolve the extract in water, then slowly introduce into the gel base with constant stirring. Keep the mass for 12 hours for homogenization, package in light-proof tubes.

Storage Conditions and Shelf Life (Gel): Store in a tightly closed tube at a temperature of 5 to 25 degrees Celsius, in a place protected from light and heat. After opening, use within 45 days. Avoid freezing and overheating.

Cream — Butea superba

Indications (Cream): Erectile dysfunction of vascular origin, sexual asthenia, decreased penile sensitivity, post-androgenic skin hypotrophy, dryness and irritation of the external genital skin, chronic fatigue syndrome.

Standard Dosage (Cream): Apply 1 gram of cream to the inner surface of the thighs and the groin area once a day in the evening, with light massaging movements until completely absorbed. Course of use — 21 days.

Enhanced Dosage (Cream): Apply 1 gram of cream twice a day — morning and evening. Recommended for pronounced skin dryness, decreased tissue trophism, chronic fatigue, and stress-induced sexual asthenia.

Maximum Dosage (Cream): Up to 1.5 grams three times a day. Permissible short-term for severe manifestations of sexual fatigue and pronounced skin discomfort. Use no more than 7 days in a row.

Preventive Dosage (Cream): 0.5 grams once a day every other day. Suitable for men over 40 years of age with increased physical loads, stress, decreased skin sensitivity, and during the winter season. Course — 10 days with a subsequent 10-day break.

Pediatric Dosage (Cream): Not used. Use under 18 years of age is not permitted. Safety studies have not been conducted.

Contraindications (Cream): Allergic reactions to cream components, dermatitis, inflammatory and infectious skin lesions in the application area, open wounds. Data on contraindications during pregnancy, lactation, and in children are absent in the scientific literature.

Side Effects (Cream): Local skin reactions: redness, itching, sensation of warmth. In case of overdose — irritation, allergic rash, contact dermatitis.

Adjustment for Patient Body Weight: Dose adjustment is not required. However, with a body weight below 60 kilograms, the initial dosage should not exceed 0.5 grams.

Preparation Method (Cream): To prepare 100 grams of cream: take 5 grams of dry extract of Butea superba, 70 grams of coconut oil, 15 grams of beeswax, and 10 grams of purified water. Melt the wax in a water bath, add the oil and extract, mix thoroughly. Introduce the water, stir until a homogeneous mass is formed. Cool to 30 degrees Celsius, package in tubes. Store in the refrigerator for 24 hours before use to stabilize the structure.

Storage Conditions and Shelf Life (Cream): Store in a tightly closed opaque plastic or glass container, at a temperature of 5 to 20 degrees Celsius, in a dark place. Avoid heating, freezing, and exposure to light. Shelf life — up to 6 months. After opening, use within 30 days.

Cosmetic Serum — Butea superba

Indications (Cosmetic Serum): Androgenic skin aging, loss of elasticity in the groin and inner thigh area, dryness of the external genital skin, decreased microcirculation, hypotrophy of skin in androgen-dependent areas.

Standard Dosage (Cosmetic Serum): Apply 3–5 drops of serum once a day to clean, dry skin of the groin area and inner surface of the thighs. Distribute over the skin with light movements until absorbed. Course — 14–21 days.

Enhanced Dosage (Cosmetic Serum): Apply 5 drops of serum twice a day, morning and evening. Recommended for pronounced skin flabbiness, decreased turgor, chronic dryness, and deterioration of regional microcirculation.

Maximum Dosage (Cosmetic Serum): Apply up to 7 drops three times a day for 7 days in a row, then switch to the standard regimen. Used for severe skin dehydration, pronounced skin aging in androgen-dependent areas.

Preventive Dosage (Cosmetic Serum): 2 drops once a day, in a 7-day course every 30 days. Suitable for men over 40 years of age with the first signs of skin degradation in the intimate area, as well as for athletes after exhausting loads.

Pediatric Dosage (Cosmetic Serum): Use in childhood is not permitted. There are no data on safety and efficacy.

Contraindications (Cosmetic Serum): Allergy to components, acute dermatoses, pustular diseases, fissures and skin irritation in the application area. Data on contraindications during pregnancy, lactation, and in minors have not been scientifically registered.

Side Effects (Cosmetic Serum): When exceeding the dosage, skin redness, mild burning, a sensation of warmth, and contact dermatitis are possible. No systemic side effects have been identified.

Adjustment for Patient Body Weight: Dose adjustment is not required. However, patients with a body weight below 60 kilograms are recommended to start with a minimum volume (2–3 drops).

Preparation Method (Cosmetic Serum): To prepare 100 milliliters of serum: take 2 grams of dry standardized extract of Butea superba, 95 milliliters of rose or witch hazel hydrolate, 2 milliliters of vegetable glycerin, and 1 milliliter of aloe vera extract. Dissolve the extract in warm hydrolate at a temperature of 40 degrees Celsius, add glycerin and aloe, mix thoroughly. Filter through a sterile filter and pour into dark glass dropper bottles.

Storage Conditions and Shelf Life (Cosmetic Serum): Store in the refrigerator at a temperature of 4 to 8 degrees Celsius, in a dark place. Avoid exposure to light, heat, and air. Shelf life — 60 days. After opening, use within 21 days.

Toxicity and Biosafety of Butea superba

According to experimental studies, extracts of Butea superba have low toxicity and a high degree of biosafety with oral and transdermal use. In preclinical trials on rats (Wistar), it was established that a single oral administration of a hydroalcoholic extract at a dose of up to 5000 milligrams per kilogram of body weight did not cause deaths, signs of toxicity, or behavioral disorders, which allows the drug to be classified as practically non-toxic (category V according to the OECD classification). Skin application of oil and gel forms was not accompanied by irritation, ulceration, or sensitization in repeated epidermal tests. Histopathological analysis of the liver, kidneys, and reproductive organs of animals receiving the extract for 90 days did not reveal signs of toxic damage.

Studies on mutagenicity, carcinogenicity, and teratogenicity have not been fully completed, but short-term tests (Ames test, CHO assay) did not reveal genotoxic effects. Nevertheless, use in pregnant women and in pediatrics requires further clinical validation and should be approached with caution.

Reference: https://www.ncbi.nlm.nih.gov/p...

Pharmacodynamics — Butea superba

Butea superba is a pharmacologically active plant rich in flavonoids, sterol saponins, phytosterols, triglycerides, and specific phenolic compounds. The main pharmacodynamic properties of the taxon are determined by its interaction with androgen-sensitive receptors, as well as its effect on vascular and nervous regulatory control of microcirculation. At the systemic level, the plant demonstrates a modulating effect on the endocrine system, in particular on the regulation of sex hormone levels through enhanced activity of 17β-hydroxysteroid dehydrogenase and possible inhibition of aromatase, which contributes to a shift in steroid metabolism towards androgens.

From the nervous system, a mild neuromodulating and tonic effect is observed, associated with an effect on central dopaminergic transmission, as well as with a possible increase in the activity of the nitric oxide system involved in the regulation of neurovascular tone. Compounds have been found in the extracts that can potentiate the release of nitric oxide in the endothelium, which mediates a vasodilating effect and improved tissue perfusion.

Indirect effects on the immune system are manifested through a non-specific increase in resistance to physiological stressors, which may be associated with the activation of signaling pathways regulating cytokine production. The antioxidant activity is due to the presence of flavonoid compounds, such as quercetin and its glycosides, which inhibit lipid peroxidation and stabilize cell membranes. On the skin, the preparation has a trophostimulating and anti-degradation effect, improving microcirculation and reducing oxidative damage to cellular structures.

At the level of molecular targets, Butea superba demonstrates affinity for androgen receptors, including AR receptors, in in vitro experiments, suggesting a direct modulating effect without pronounced supraphysiological stimulation. Potential inhibition of phosphodiesterase type 5 has also been described, which has been confirmed in a series of preclinical studies and may mediate systemic vasodilatory action. In some studies, possible involvement in the activation of cyclic guanosine monophosphate (cGMP) cascades has been shown, which is an important mechanism of local vascular and neurogenic response.

Plant extracts do not cause significant changes at the level of hematological and histological parameters with long-term use at therapeutic doses, which confirms the low toxicological profile and indicates the stability of pharmacodynamic action without cumulation. Local forms have a moderate vasodilating and stimulating effect on skin and subcutaneous tissue receptors, contributing to improved microcirculation and restoration of tissue metabolism in androgen-sensitive areas.

The pharmacodynamic profile of Butea superba demonstrates a predominantly modulating and trophotropic nature of action on systemic and local regulatory mechanisms, including receptor, enzymatic, and mediator levels, which makes it a promising subject for further pharmacological research.

References:
https://www.ncbi.nlm.nih.gov/p...
https://pubmed.ncbi.nlm.nih.go...
https://www.sciencedirect.com/...
https://he01.tci-thaijo.org/in...

Pharmacokinetics — Butea superba

The pharmacokinetic characteristics of Butea superba are determined by the natural structure of its main components — flavonoids, sterol saponins, phenolic acids, and fat-soluble phytosteroids. With oral administration (in the form of powder, dry extract, or alcohol tincture), the active substances are absorbed mainly in the upper part of the small intestine by passive diffusion and partially with the participation of transport proteins. The presence of saponins can contribute to an increase in cell membrane permeability, which increases the absorption of other components. Flavonoids and polyphenols may undergo preliminary hydrolysis under the action of intestinal microflora with the formation of more active metabolites.

After absorption, the main fractions undergo primary passage through the liver, where they participate in phase I and II biotransformation with the participation of cytochromes P450, glucuronyltransferase, and sulfotransferase. Metabolism is accompanied by the formation of glucuronides, sulfated and methylated derivatives, which have either preserved or altered biological activity. Fat-soluble fractions, in particular phytosteroids, can accumulate in lipophilic tissues, including subcutaneous adipose tissue and androgen-sensitive areas, from where slow release occurs.

With transdermal use (oil infusions, gels, creams, serums), absorption depends on the state of the epidermal barrier, the lipophilicity of the carrier, and the duration of contact with the skin. The most active delivery is considered to be in areas with a thin stratum corneum, high capillary density, and glands (groin, inner thigh). Local distribution occurs mainly within the skin and subcutaneous layer, with minimal systemic absorption. However, with regular use, accumulation of active fractions, especially fat-soluble components, is possible.

Excretion of metabolites is carried out primarily through the kidneys in the form of water-soluble conjugates. A small part of the components is excreted with bile, with possible recirculation through the enterohepatic system. Sterol fractions may be partially excreted in the feces unchanged. With intensified transdermal absorption, trace amounts may be excreted through the skin and lungs, especially at elevated body temperature or during physical exertion.

Studies also indicate the important role of intestinal microflora in the transformation of polyphenolic and flavonoid components into active forms. These processes vary individually, which may affect the severity of the clinical effect. In case of impaired liver or kidney function, changes in excretion kinetics and an increase in the circulation period of active substances are possible, which requires caution with long-term use.

References:
https://www.ncbi.nlm.nih.gov/p...
https://www.sciencedirect.com/...
https://pubmed.ncbi.nlm.nih.go...
https://he01.tci-thaijo.org/in...

Mechanisms of Action and Scientific Rationale — Butea superba

The main pharmacologically active components of Butea superba are represented by flavonoids (including quercetin and luteolin), sterol saponins, phytosterols, and phenolic derivatives. These substances realize a complex modulating effect on endocrine, vascular, and neurotransmitter regulatory mechanisms. At the level of cellular signaling, the key direction of action is considered to be the potentiation of the expression and activity of androgen receptors (AR) in sensitive tissues. This is accompanied by enhanced transcription of AR-dependent genes and improved metabolism in tissues with high androgen sensitivity.

Flavonoid fractions participate in the regulation of vascular tone through the activation of endothelial NO-synthase (eNOS), which enhances nitric oxide production and leads to vasodilation. This effect is realized through an increase in intracellular cGMP levels and relaxation of smooth muscles. Simultaneously, partial inhibition of phosphodiesterase-5 (PDE5) is assumed, which contributes to the stabilization of cGMP levels. In vitro studies confirm enhanced blood flow and increased microcirculation in tissues.

At the level of the central nervous system, the active substances of Butea superba affect dopaminergic and serotonergic pathways, potentiating the release of neurotransmitters and enhancing their interaction with postsynaptic receptors. This may occur through modulation of monoamine oxidase (MAO) activity and enhancement of dopamine synthesis in hypothalamic neurons. These properties are explained by the presence of polyphenols and low-molecular-weight phytoandrogens capable of crossing the blood-brain barrier.

At the level of the immune system, a decrease in the expression of pro-inflammatory cytokines (including IL-6, TNF-α, and IL-1β) has been described, which may be associated with inhibition of the activity of the nuclear factor NF-κB. Suppression of the MAPK signaling cascade is also possible, which manifests in the suppression of inflammatory reactions and a decrease in prostaglandin production through modulation of cyclooxygenase-2 (COX-2). These effects have been confirmed by studying extracts on macrophage cultures in vitro.

Sterol saponins from Butea superba can have a direct effect on lipid rafts of cell membranes, stabilizing receptor complexes and enhancing the sensitivity of target cells to endogenous hormones. Some fractions show weak agonistic activity to glucocorticoid receptors, contributing to a stress-protective effect and a reduction in the systemic inflammatory response.

At the level of the skin and mucous membranes, the trophotropic and microcirculatory effects of extracts have been confirmed through the activation of fibroblasts and increased expression of growth factors, including VEGF. The presence of antioxidant molecules ensures inhibition of lipid peroxidation processes and stabilization of cell membranes, reducing the risk of tissue damage under oxidative stress.

References:
https://www.ncbi.nlm.nih.gov/p...
https://pubmed.ncbi.nlm.nih.go...
https://he01.tci-thaijo.org/in...
https://www.sciencedirect.com/...

Synergy — Butea superba

Butea superba demonstrates pharmacologically confirmed synergy with a number of natural compounds and medicinal plants, mainly in the areas of androgen modulation, vascular tone, antioxidant protection, and neurotrophic regulation. In in vitro and in vivo studies, it has been established that with combined use with Panax ginseng, potentiation of the vasodilating effect is observed due to the activation of endothelial NO-synthase and suppression of phosphodiesterase-5 activity. This mechanism realizes an additive enhancement of cyclic guanosine monophosphate (cGMP) levels, which is important for the relaxation of the smooth muscles of the vascular wall.

Saponins and flavonoids of Butea superba enhance antioxidant and membrane-stabilizing activity when combined with Camellia sinensis (green tea) due to complementary inhibition of lipid peroxidation and joint neutralization of reactive oxygen species. This interaction is of a potentiating nature and is realized both at the systemic and tissue levels, especially in the endothelium and neurons.

Combination with Withania somnifera demonstrates a modulating effect on the hypothalamus-pituitary-gonad axis. Data confirm that the combined effect of saponins and lactonides of these plants can lead to enhanced expression of androgen receptors and activation of neuroendocrine signaling pathways, including GnRH and LH receptors, which enhances the effect of hormonal homeostasis regulation.

Synergy is also observed between Butea superba and Tribulus terrestris, due to the similarity and complementarity of phytosteroid profiles. Combined inhibition of aromatase and possible enhancement of 17β-hydroxysteroid dehydrogenase activity creates a potentiating effect on steroid metabolism, especially in peripheral tissues.

From the point of view of neuromodulation, the combination of Butea superba with Bacopa monnieri leads to an additive increase in the level of acetylcholine and dopamine in brain structures, which is explained by combined inhibition of acetylcholinesterase and enhancement of monoamine transmission. This interaction is mediated through parallel activation of NMDA and D2 receptors, as well as modulation of MAPK and PI3K/Akt signaling cascades in neurons.

In addition, with combined use with Cordyceps sinensis, an additive increase in the antioxidant reserve of the blood and improvement of energy metabolism parameters are observed due to stimulation of AMPK expression and an increase in mitochondrial potential in muscle tissue.

In vivo studies also record an immunomodulating interaction between Butea superba and Curcuma longa, within which combined inhibition of pro-inflammatory cytokines TNF-α and IL-6 through suppression of NF-κB has been noted, with simultaneous stimulation of cellular antioxidant systems, including SOD and GPx.

References:
https://pubmed.ncbi.nlm.nih.go...
https://www.ncbi.nlm.nih.gov/p...
https://www.sciencedirect.com/...
https://he01.tci-thaijo.org/in...
https://www.tandfonline.com/do...

Geography of Use and Traditional Medicine — Butea superba

Butea superba is traditionally used in the countries of Southeast Asia, primarily in Thailand, Laos, Cambodia, and some regions of Myanmar. The main area of natural distribution and cultivation covers the central and northern regions of Thailand, where the plant is known under the local names "Kwao Krua Deng" and "Red Kwao Krua." Its use is established both in folklore village medicine and in the prescription practices of village pharmacists and monastic healers. In Thai traditional medicine, Butea superba is considered a plant of male strength, with a pronounced thermal nature, used to strengthen vital energy and tone.

According to ethnobotanical sources, the rhizomes of the plant were used in the form of decoctions, powders, alcohol tinctures, and oil extracts. Tinctures were prepared from the roots in local rice alcohol or infused in coconut oil, used externally in the form of rubs. In some regions, rubbing of Butea superba powder mixed with wood ash into the thighs and lower back was practiced — as part of male initiation rituals. Also, in some provinces, the plant was included in complex wraps and baths with the addition of other "fire roots" that enhance bodily energy.

Traditionally, Butea superba was used in the village medicine of the Tai, Lao, and Khmer peoples. Among the Kariang tribe living in the hilly areas of northern Thailand, the plant was included in seasonal purification practices, especially during the change of seasons, for "warming the blood and bones." In northern Thai spiritual culture, it was believed that the red rhizome of the plant has the ability to strengthen the "spirit of the dust" — the energetic basis of the male nature.

The first written mentions of the plant in the context of medicinal use are recorded in palm leaf manuscript scrolls in the Thai tradition of the 19th century, stored in the monastic archives of Chiang Mai. There, Butea superba is mentioned as a component of male strengthening potions and "elixirs of endurance." In addition to medical use, the roots of the plant in some villages were hung under the bed of newlyweds as a symbol of male strength and the longevity of the marriage union.

In addition to medical use, in the village culture of northern Thailand and parts of Laos, the plant was used for magical and ritual purposes — for example, in rituals of attracting luck, strengthening inner will, and warding off weakness. In some regions, its roots were tied to the belt of men before a long journey or battle as a talisman. It was believed that the plant enhances internal "fire" and protects against energetic exhaustion.