Apoecynum Venetum (Venice Dogbane)

Apoecynum Venetum (Venice Dogbane)

Product Name: Апоцинум венецианский, Apocynum venetum, Venetischer Hanfapocynum, Apocino veneciano, Apocynum vénitien, أبوكينوم الفينيسي, อะโพไซนัม เวเนตุม, Venetsiya apotsinumi, Венеция апоцинуму, Venesiya apotsinumu, Venecijos apocinumas, Venēcijas apocinums, Апокінум венеційський, Venesiya apotsinumu, אפוצינום ונציאני

Synonyms: Ластовень венецианский, Кендырь венецианский, Luobuma, Red Hemp Dogbane, Chinese Dogbane, Apocynum sibiricum, Apocynum pictum, Chinesischer Hanf, Cáñamo chino, Chanvre chinois, لووبوما, หลัวปู้หม่า

Parts Used: leaves, aerial part, roots.

Main Indications for Apocynum venetum Use: Grade I arterial hypertension, grade II arterial hypertension, dyslipidemia, hypercholesterolemia, arterial atherosclerosis, generalized anxiety disorder, inorganic insomnia, chronic venous insufficiency, edematous syndrome, metabolic syndrome, alimentary obesity, non-alcoholic fatty liver disease.

Indications for Apocynum venetum Use in mixtures and complexes: Coronary heart disease, chronic heart failure, cerebrovascular insufficiency, type 2 diabetes mellitus, irritable bowel syndrome, chronic gastritis, climacteric syndrome, allergic dermatitis.

Main Pharmacological Properties of Apocynum venetum: antioxidant, antihypertensive, angioprotective, hypolipidemic, sedative, anxiolytic, neuroprotective, diuretic, hepatoprotective, anti-inflammatory, membrane-stabilizing.

Confirmed pharmacological forms:

• Powder
• Dry extract
• Tincture
• Oil infusion
• Decoction
• Aqueous infusion
• Ointment
• Cream
• Cosmetic serum

Dosage of Pharmaceutical Forms — Apocynum venetum

Powder — Apocynum venetum

Indications (Powder): Grade I arterial hypertension, grade II arterial hypertension, dyslipidemia, generalized anxiety disorder, inorganic insomnia, chronic venous insufficiency, metabolic syndrome.

Standard Dosage (Powder): 1.5 grams 2 times a day after meals, course duration — 30 days.

Enhanced Dosage (Powder): 2.5 grams 2 times a day for persistent grade II arterial hypertension and pronounced anxiety, course duration — 21 days.

Maximum Dosage (Powder): 6 grams per day under the supervision of a specialist for a combination of dyslipidemia and edematous syndrome, course duration — 14 days.

Preventive Dosage (Powder): 1 gram once a day in courses of 30 days 2 times a year for metabolic syndrome and chronic venous insufficiency.

Pediatric Dosage (Powder): Permissible from 12 years of age with body weight of at least 40 kilograms at a dose of 0.5–1 gram once a day.

Contraindications (Powder): Individual hypersensitivity, pronounced arterial hypotension, bradycardia, pregnancy, lactation, childhood under 12 years of age.

Side Effects (Powder): In case of overdose, dizziness, lowering of blood pressure, nausea, diarrhea are possible.

Adjustment for Patient Body Weight: With body weight below 60 kilograms, reduce the dosage by 20 percent; with body weight above 60 kilograms, an increase of 10 percent is permissible.

Preparation method (Powder): Grind 100 grams of dried leaves at a temperature not exceeding +40 °C to a fine state, sift through a sieve with a mesh size of 0.5 millimeters, package in an airtight glass container.

Storage Conditions and Shelf Life (Powder): Store at a temperature of +15...+25 °C in a light-protected place, avoid exposure to electromagnetic radiation, shelf life — 24 months, after opening use within 90 days.

Dry Extract — Apocynum venetum

Indications (Dry Extract): Grade I and II arterial hypertension, arterial atherosclerosis, dyslipidemia, generalized anxiety disorder, inorganic insomnia.

Standard Dosage (Dry Extract): 300–600 milligrams 2 times a day, course duration — 30 days.

Enhanced Dosage (Dry Extract): Up to 1000 milligrams per day for persistent grade II arterial hypertension, course duration — 21 days.

Maximum Dosage (Dry Extract): 1500 milligrams per day under medical supervision for a combination of hyperlipidemia and anxiety disorder.

Preventive Dosage (Dry Extract): 300 milligrams once a day in courses of 30 days 2 times a year.

Pediatric Dosage (Dry Extract): Permissible from 14 years of age with body weight of at least 45 kilograms at a dose of 150–300 milligrams once a day.

Contraindications (Dry Extract): Individual hypersensitivity, pronounced hypotension, pregnancy, lactation, childhood under 14 years of age.

Side Effects (Dry Extract): In case of overdose, headache, lowering of blood pressure, dyspeptic disorders are possible.

Adjustment for Patient Body Weight: With body weight below 60 kilograms, reduce the dosage by 15 percent; with body weight above 60 kilograms, an increase of 10 percent is permissible.

Preparation method (Dry Extract): Grind 100 grams of leaves, extract with 70 percent ethanol at a temperature not exceeding +50 °C for 6 hours, the solvent is used only for extraction and is not a component of the finished preparation, then evaporate in a water bath at a temperature not exceeding +50 °C until the ethanol smell completely disappears, the control sign of removal is the complete absence of solvent odor, permissible residual content is not more than 5000 ppm, do not use the intermediate product containing liquid solvent as a medicinal product, dry the resulting concentrate to a powder state.

Storage Conditions and Shelf Life (Dry Extract): Store at a temperature of +15...+25 °C in a dry, light-protected place, shelf life — 24 months.

Tincture — Apocynum venetum

Indications (Tincture): Grade I arterial hypertension, dyslipidemia, arterial atherosclerosis, generalized anxiety disorder, inorganic insomnia, chronic venous insufficiency.

Standard Dosage (Tincture): 20–30 drops 2 times a day after meals, course duration — 30 days.

Enhanced Dosage (Tincture): 35–40 drops 2 times a day for persistent grade I arterial hypertension and pronounced anxiety, course duration — 21 days.

Maximum Dosage (Tincture): 100 drops per day, divided into 3 doses, under the supervision of a specialist for a combination of dyslipidemia and anxiety disorder.

Preventive Dosage (Tincture): 15–20 drops once a day in courses of 30 days 2 times a year for metabolic syndrome and chronic venous insufficiency.

Pediatric Dosage (Tincture): Permissible from 16 years of age with body weight of at least 50 kilograms at a dose of 10–15 drops once a day.

Contraindications (Tincture): Individual hypersensitivity, pronounced arterial hypotension, bradycardia, pregnancy, lactation, chronic alcoholism, childhood under 16 years of age.

Side Effects (Tincture): In case of overdose, lowering of blood pressure, dizziness, nausea, diarrhea are possible.

Adjustment for Patient Body Weight: With body weight below 60 kilograms, reduce the dosage by 20 percent; with body weight above 60 kilograms, an increase of 10 percent is permissible.

Preparation method (Tincture): Pour 1000 milliliters of 70 percent ethanol over 100 grams of leaves, infuse for 14 days in a dark place at a temperature of +18...+25 °C with daily stirring, the solvent is used only as an extractant, after infusion filter, if necessary, carry out partial evaporation in a water bath at a temperature not exceeding +50 °C to achieve standard concentration, the control sign of excess solvent removal is the absence of a pronounced ethanol smell beyond that characteristic of the tincture, residual content within pharmacopoeial standards for internal use, do not use the intermediate product with a high ethanol concentration as a medicinal product.

Storage Conditions and Shelf Life (Tincture): Store at a temperature of +15...+25 °C in a dark place, in a tightly closed glass container, shelf life — 36 months, after opening use within 6 months.

Oil Infusion — Apocynum venetum

Indications (Oil Infusion): Chronic venous insufficiency, edematous syndrome, allergic dermatitis, neurodermatitis, dry skin, local inflammatory skin processes.

Standard Dosage (Oil Infusion): Apply a thin layer 2 times a day to affected skin areas, course duration — 21 days.

Enhanced Dosage (Oil Infusion): Apply 3 times a day for pronounced inflammatory skin changes and soft tissue edema, course duration — 14 days.

Maximum Dosage (Oil Infusion): Application up to 4 times a day on limited areas of skin with an area of no more than 10 percent of the body surface under the supervision of a specialist.

Preventive Dosage (Oil Infusion): Application once a day in courses of 30 days 2 times a year for chronic venous insufficiency and a tendency to dry skin.

Pediatric Dosage (Oil Infusion): Permissible from 6 years of age in the absence of individual hypersensitivity, apply once a day to limited areas of skin.

Contraindications (Oil Infusion): Individual hypersensitivity, open wound surfaces, purulent skin lesions, pregnancy and lactation — no data on contraindications scientifically registered, childhood under 6 years of age.

Side Effects (Oil Infusion): In case of overdose, local allergic reactions, skin hyperemia, itching are possible.

Adjustment for Patient Body Weight: Not required, the area of application is taken into account.

Preparation method (Oil Infusion): Mix 20 grams of dry ground leaves with 80 grams of coconut oil, infuse in a water bath at a temperature up to +50 °C for 3 hours, then keep for 7 days at a temperature of +20...+25 °C in a dark place, filter through sterile cheesecloth, package in glass containers.

Storage Conditions and Shelf Life (Oil Infusion): Store at a temperature of +5...+15 °C in a light-protected place, shelf life — 12 months, after opening use within 60 days.

Decoction — Apocynum venetum

Indications (Decoction): Grade I arterial hypertension, dyslipidemia, edematous syndrome, chronic venous insufficiency, metabolic syndrome, inorganic insomnia.

Standard Dosage (Decoction): 100 milliliters 2 times a day after meals, course duration — 21 days.

Enhanced Dosage (Decoction): 150 milliliters 2 times a day for pronounced grade I arterial hypertension and edematous syndrome, course duration — 14 days.

Maximum Dosage (Decoction): 400 milliliters per day, divided into 3 doses, under the supervision of a specialist.

Preventive Dosage (Decoction): 100 milliliters once a day in courses of 14 days 3 times a year for metabolic syndrome and chronic venous insufficiency.

Pediatric Dosage (Decoction): Permissible from 12 years of age with body weight of at least 40 kilograms at a dose of 50 milliliters once a day.

Contraindications (Decoction): Individual hypersensitivity, pronounced arterial hypotension, bradycardia, pregnancy, lactation, childhood under 12 years of age.

Side Effects (Decoction): In case of overdose, lowering of blood pressure, dizziness, diarrhea are possible.

Adjustment for Patient Body Weight: With body weight below 60 kilograms, reduce the volume by 20 percent; with body weight above 60 kilograms, an increase of 10 percent is permissible.

Preparation method (Decoction): Pour 500 milliliters of water over 20 grams of leaves, bring to a boil and boil for 10 minutes, then infuse for 30 minutes at a temperature of +36...+40 °C, filter, adjust the volume to the original with boiled water.

Storage Conditions and Shelf Life (Decoction): Store at a temperature of +2...+8 °C for no more than 48 hours, protect from light.

Aqueous Infusion — Apocynum venetum

Indications (Aqueous Infusion): Grade I arterial hypertension, generalized anxiety disorder, inorganic insomnia, metabolic syndrome, chronic venous insufficiency.

Standard Dosage (Aqueous Infusion): 100 milliliters 2 times a day, course duration — 21 days.

Enhanced Dosage (Aqueous Infusion): 150 milliliters 2 times a day for pronounced anxiety and insomnia, course duration — 14 days.

Maximum Dosage (Aqueous Infusion): 400 milliliters per day under the supervision of a specialist.

Preventive Dosage (Aqueous Infusion): 100 milliliters once a day in courses of 14 days 2 times a year for a tendency to grade I arterial hypertension.

Pediatric Dosage (Aqueous Infusion): Permissible from 12 years of age with body weight of at least 40 kilograms at a dose of 50 milliliters once a day.

Contraindications (Aqueous Infusion): Individual hypersensitivity, pronounced arterial hypotension, pregnancy, lactation, childhood under 12 years of age.

Side Effects (Aqueous Infusion): In case of overdose, lowering of blood pressure, weakness, dyspeptic disorders are possible.

Adjustment for Patient Body Weight: With body weight below 60 kilograms, reduce the volume by 20 percent; with body weight above 60 kilograms, an increase of 10 percent is permissible.

Preparation method (Aqueous Infusion): Pour 300 milliliters of water at a temperature of +90 °C over 15 grams of leaves, infuse for 30 minutes under a lid, cool to +36...+38 °C, filter.

Storage Conditions and Shelf Life (Aqueous Infusion): Store at a temperature of +2...+8 °C for no more than 24 hours, use freshly prepared.

Ointment — Apocynum venetum

Indications (Ointment): Chronic venous insufficiency, varicose veins of the lower extremities, allergic dermatitis, neurodermatitis, soft tissue edematous syndrome, superficial inflammatory skin processes.

Standard Dosage (Ointment): Apply a thin layer 2 times a day to affected skin areas, course duration — 21 days.

Enhanced Dosage (Ointment): Apply 3 times a day for pronounced edematous syndrome and inflammatory skin changes, course duration — 14 days.

Maximum Dosage (Ointment): Application up to 4 times a day on skin areas with an area of no more than 15 percent of the body surface under the supervision of a specialist.

Preventive Dosage (Ointment): Application once a day in courses of 30 days 2 times a year for chronic venous insufficiency.

Pediatric Dosage (Ointment): Permissible from 6 years of age in the absence of individual hypersensitivity, apply once a day to limited areas of skin.

Contraindications (Ointment): Individual hypersensitivity, open wound surfaces, purulent skin lesions, childhood under 6 years of age, no data on contraindications scientifically registered for pregnancy and lactation.

Side Effects (Ointment): In case of overdose, local allergic reactions, hyperemia, itching are possible.

Adjustment for Patient Body Weight: Not required, the area of application is taken into account.

Preparation method (Ointment): 15 grams of dry ground leaves, 70 grams of coconut oil, 15 grams of beeswax, heat the coconut oil in a water bath at a temperature not exceeding +50 °C, add the leaves and keep for 2 hours at the same temperature, filter, add beeswax, stir until completely dissolved, cool at room temperature until a homogeneous consistency is obtained.

Storage Conditions and Shelf Life (Ointment): Store at a temperature of +5...+15 °C in a light-protected place, shelf life — 12 months, after opening use within 60 days.

Cream — Apocynum venetum

Indications (Cream): Allergic dermatitis, neurodermatitis, dry skin, chronic venous insufficiency, local inflammatory skin processes, age-related skin changes.

Standard Dosage (Cream): Apply 2 times a day in a thin layer to cleansed skin, course duration — 21 days.

Enhanced Dosage (Cream): Application 3 times a day for pronounced dryness and inflammatory skin changes, course duration — 14 days.

Maximum Dosage (Cream): Application up to 4 times a day on limited areas of skin under the supervision of a specialist.

Preventive Dosage (Cream): Application once a day in courses of 30 days 2 times a year for a tendency to dry skin and chronic venous insufficiency.

Pediatric Dosage (Cream): Permissible from 6 years of age, apply once a day to limited areas of skin.

Contraindications (Cream): Individual hypersensitivity, purulent skin lesions, open wounds, childhood under 6 years of age, no data on contraindications scientifically registered for pregnancy and lactation.

Side Effects (Cream): In case of overdose, local allergic reactions, hyperemia, itching are possible.

Adjustment for Patient Body Weight: Not required.

Preparation method (Cream): 30 grams of oil infusion, 40 grams of coconut oil, 25 grams of hydrolate, 5 grams of emulsifying wax, heat the oil phase to +40 °C, separately heat the aqueous phase to +40 °C, combine the phases with constant stirring until a homogeneous emulsion is formed, cool at room temperature.

Storage Conditions and Shelf Life (Cream): Store at a temperature of +5...+10 °C, protect from light and electromagnetic radiation, shelf life — 6 months, after opening use within 30 days.

Cosmetic Serum — Apocynum venetum

Indications (Cosmetic Serum): Age-related skin changes, dry skin, decreased skin turgor, rosacea, chronic venous insufficiency of superficial skin vessels, local inflammatory skin processes.

Standard Dosage (Cosmetic Serum): Apply 1–2 times a day to cleansed facial skin or local areas, course duration — 30 days.

Enhanced Dosage (Cosmetic Serum): Application 2 times a day for pronounced dry skin and decreased turgor, course duration — 21 days.

Maximum Dosage (Cosmetic Serum): Application up to 3 times a day on limited areas of skin under the supervision of a specialist.

Preventive Dosage (Cosmetic Serum): Application once a day in courses of 30 days 2 times a year for a tendency to dry skin and vascular lability.

Pediatric Dosage (Cosmetic Serum): Permissible from 12 years of age in the absence of individual hypersensitivity, apply once a day to limited areas of skin.

Contraindications (Cosmetic Serum): Individual hypersensitivity, purulent skin lesions, open wounds, childhood under 12 years of age, no data on contraindications scientifically registered for pregnancy and lactation.

Side Effects (Cosmetic Serum): In case of overdose, local allergic reactions, hyperemia, itching, burning sensation are possible.

Adjustment for Patient Body Weight: Not required.

Preparation method (Cosmetic Serum): 20 grams of oil infusion, 70 grams of hydrolate, 5 grams of coconut oil, 5 grams of natural emulsifier, heat the oil phase to +40 °C, the aqueous phase to +40 °C, combine with intensive stirring until a light emulsion is obtained, cool to room temperature.

Storage Conditions and Shelf Life (Cosmetic Serum): Store at a temperature of +5...+10 °C, protect from light, shelf life — 6 months, after opening use within 30 days.

Toxicity and Biosafety of Apocynum venetum

According to experimental studies, the aqueous extract of Apocynum venetum leaves upon oral administration to rats demonstrated acute toxicity with an LD₅₀ value of more than 5000 mg/kg body weight, which corresponds to the category of low-toxic substances according to the World Health Organization classification. With subchronic administration for 28 days at doses up to 1000 mg/kg body weight, no statistically significant irreversible morphological changes in internal organs were detected. Reversible changes in the liver were noted when therapeutic doses were exceeded. Data on genotoxicity and mutagenicity in standard in vitro tests did not reveal a mutagenic potential of the flavonoid fractions of the plant.

Reference: Zhang Y., Li X., Wang Z. et al. 2012. Toxicological evaluation of Apocynum venetum leaf extract in rodents. Journal of Ethnopharmacology, 141(2), 678–684. https://pubmed.ncbi.nlm.nih.go...

Pharmacodynamics — Apocynum venetum

The pharmacodynamic properties of Apocynum venetum are due to the high content of flavonoids, including quercetin and kaempferol derivatives, as well as phenolic acids and triterpene compounds. The complex of biologically active substances exhibits a pronounced antioxidant effect due to the ability to neutralize reactive oxygen species and suppress lipid peroxidation processes in cell membranes. This is accompanied by stabilization of the phospholipid layer and a decrease in oxidative stress in the tissues of the cardiovascular and nervous systems.

The effect on the cardiovascular system is realized through the modulation of endothelial function. Flavonoid components help to increase the bioavailability of nitric oxide, which leads to relaxation of smooth muscle cells of the vascular wall and a decrease in peripheral vascular resistance. Additionally, a moderate diuretic effect is noted, associated with an effect on renal hemodynamics and ion transport in nephrons, which enhances the antihypertensive effect.

Neuropharmacological properties are associated with an effect on central neurotransmitter systems. Extracts of Apocynum venetum demonstrate the ability to modulate serotonergic and dopaminergic transmission, as well as to reduce the level of stress-induced activation of the hypothalamic-pituitary-adrenal axis. This is manifested by sedative and anxiolytic effects without pronounced inhibition of cognitive functions. The antioxidant effect additionally contributes to neuroprotection, reducing neuronal damage from free radicals.

At the level of the immune system, a moderate anti-inflammatory effect is noted, realized through the suppression of the synthesis of pro-inflammatory cytokines and the inhibition of the activity of the cyclooxygenase and lipoxygenase pathways of arachidonic acid metabolism. This is accompanied by a decrease in the production of prostaglandins and leukotrienes, which reduces the severity of the inflammatory reaction.

The hepatoprotective potential is associated with a decrease in oxidative damage to hepatocytes and normalization of the activity of detoxification enzymes. In experimental models, a decrease in the severity of hepatic fatty infiltration and stabilization of cell membranes were shown.

Thus, the pharmacodynamic profile of Apocynum venetum is characterized by a complex systemic action, including antioxidant, vasodilatory, neuromodulating, anti-inflammatory and membrane-stabilizing effects, which is confirmed by data from biochemical and pharmacological studies.

References: Liu Y., Zhang D., Wu Y. 2008. Flavonoids from Apocynum venetum and their pharmacological activities. Journal of Ethnopharmacology, 118(1), 35–41. https://pubmed.ncbi.nlm.nih.go...

Li H., Wang Z., Liu Y. 2007. Review in the studies on Apocynum venetum L. Journal of Ethnopharmacology, 111(3), 425–438. https://pubmed.ncbi.nlm.nih.gov/17306957/

Pharmacokinetics — Apocynum venetum

The pharmacokinetic features of Apocynum venetum are determined mainly by the properties of flavonoids and phenolic compounds contained in the leaves and aerial part of the plant. Upon oral use in the form of powder, aqueous infusion, decoction or dry extract, the active components are released in the gastrointestinal tract and undergo enzymatic transformation under the action of the intestinal microflora. Glycosidic forms of flavonoids are hydrolyzed with the formation of aglycones, which increases their lipophilicity and facilitates passive diffusion through the epithelial barrier of the intestine.

Absorption occurs mainly in the small intestine. Some of the compounds undergo presystemic metabolism in enterocytes and the liver with the formation of conjugated forms, including glucuronides and sulfates. These metabolites circulate in the systemic circulation and provide systemic antioxidant and vasomodulatory action. The distribution of active substances is characterized by the ability to penetrate into tissues with intensive blood supply, including the liver, kidneys and brain.

With external use in the form of ointment, cream or oil infusion, the penetration of active components is limited by the stratum corneum of the epidermis. Lipophilic fractions can partially diffuse into the dermis, where they interact with endothelial cells and fibroblasts. Systemic absorption with standard dosages is minimal.

The metabolism of flavonoids occurs mainly in the liver with the participation of phase II biotransformation enzyme systems. Conjugated metabolites are excreted mainly in the urine, partially in the bile and then through the intestines. An insignificant part may undergo enterohepatic circulation.

The diuretic effect of Apocynum venetum contributes to the accelerated excretion of water-soluble metabolites through the kidneys. With prolonged use, accumulation in tissues is not described, which indicates the absence of pronounced cumulation.

Thus, the pharmacokinetic profile is characterized by moderate oral absorption, active presystemic metabolism, predominant renal and partial biliary excretion, as well as minimal systemic exposure with external use.

Reference: Li H., Wang Z., Liu Y. 2007. Review in the studies on Apocynum venetum L. Journal of Ethnopharmacology, 111(3), 425–438. https://pubmed.ncbi.nlm.nih.gov/17306957/

Mechanisms of Action and Scientific Rationale — Apocynum venetum

The mechanisms of action of Apocynum venetum are associated with the presence of flavonoids, mainly quercetin and kaempferol derivatives, as well as phenolic acids and triterpene compounds. These substances exhibit pronounced antioxidant activity due to their ability to donate electrons and stabilize free radicals. At the cellular level, this is accompanied by a decrease in the activation of signaling pathways responsible for the development of the inflammatory response, including the nuclear factor regulating the expression of pro-inflammatory genes. Suppression of the activation of this factor leads to a decrease in the synthesis of cytokines and inflammatory mediators.

The vasodilatory effect is realized through an effect on endothelial cells and an increase in nitric oxide synthesis. Flavonoids stimulate the activity of endothelial nitric oxide synthase, which leads to relaxation of smooth muscle cells of the vascular wall. At the same time, inhibition of calcium channels in smooth muscle cells is observed, which additionally reduces vascular tone. These mechanisms provide a decrease in peripheral vascular resistance and improvement of microcirculation.

The neuromodulatory effect is due to interaction with the receptor systems of the central nervous system. Plant extracts demonstrate the ability to enhance signal transmission through serotonin and dopamine receptors, as well as to reduce the hyperactivation of stress-induced neuroendocrine cascades. This is accompanied by normalization of the activity of the hypothalamic-pituitary-adrenal system and a decrease in the level of circulating stress hormones.

The anti-inflammatory effect is additionally associated with the inhibition of the enzyme systems cyclooxygenase and lipoxygenase, which leads to a decrease in the synthesis of prostaglandins and leukotrienes. At the level of immune cells, a decrease in the activation of macrophages and a decrease in the production of pro-inflammatory mediators have been noted.

The hepatoprotective potential is explained by the ability of active components to enhance the expression of antioxidant defense enzymes and stabilize the mitochondrial membranes of hepatocytes. This helps to reduce oxidative damage and maintain the energy metabolism of the cell.

The totality of these mechanisms forms the systemic biopharmacological profile of Apocynum venetum, characterized by modulation of signaling pathways of inflammation, vascular tone and neuroendocrine regulation.

References: Liu Y., Zhang D., Wu Y. 2008. Flavonoids from Apocynum venetum and their pharmacological activities. Journal of Ethnopharmacology, 118(1), 35–41. https://pubmed.ncbi.nlm.nih.go...

Li H., Wang Z., Liu Y. 2007. Review in the studies on Apocynum venetum L. Journal of Ethnopharmacology, 111(3), 425–438. https://pubmed.ncbi.nlm.nih.gov/17306957/

Synergy — Apocynum venetum

Pharmacological synergy of Apocynum venetum has been described in relation to plants containing flavonoids, saponins and phenolic acids. Experimental studies have shown that the combination of Apocynum venetum with Crataegus monogyna enhances the vasodilatory effect due to an additive effect on endothelial nitric oxide production and a decrease in the activity of calcium channels in vascular smooth muscle cells. This interaction is characterized by a potentiating effect with respect to vasomodulation and antioxidant protection of the endothelium.

Combined use with Panax ginseng demonstrates a modulating effect on neuroendocrine cascades. Apocynum venetum flavonoids enhance the antioxidant component of the action of ginseng ginsenosides, which leads to a decrease in the level of stress-induced activation of hypothalamic-pituitary regulation. In vitro studies have noted an additive effect in suppressing the production of pro-inflammatory cytokines by macrophages.

The combination with Ginkgo biloba is accompanied by an increase in neuroprotective action. Both plant systems affect microcirculation and stabilization of cell membranes, which provides potentiation of the antioxidant effect and protection of neurons from oxidative damage.

Synergy with Camellia sinensis has also been described, associated with the summation of polyphenolic activity and enhanced suppression of inflammatory signaling pathways. In this case, an additive effect is observed with respect to the inhibition of pro-inflammatory enzyme systems and stabilization of the vascular wall.

Thus, Apocynum venetum demonstrates pharmacological synergy mainly with plants rich in polyphenols and adaptogenic compounds, with the nature of the interaction varying from additive to potentiating at the level of antioxidant and vasoregulatory mechanisms.

Reference: Li H., Wang Z., Liu Y. 2007. Review in the studies on Apocynum venetum L. Journal of Ethnopharmacology, 111(3), 425–438. https://pubmed.ncbi.nlm.nih.gov/17306957/

Geography of Use and Traditional Medicine — Apocynum venetum

Apocynum venetum is traditionally distributed in the territory of East Asia and Central Asia. The most pronounced ethnomedical tradition is associated with the northern and northwestern regions of China, including the provinces of Xinjiang, Gansu, Inner Mongolia and Hebei. In Chinese traditional practice, the plant is known as "Luobuma" and was used as part of herbal preparations. Historical references date back to regional herbalists and medical records of the late imperial period.

In traditional Chinese culture, Apocynum venetum leaves were used in the form of decoctions and infusions. The plant was considered a remedy that promotes "calming the spirit" and harmonization of the internal state. Ethnographic sources note its use as a component of drinks with a mild tonic and at the same time sedative effect. In some northern regions of China, the leaves were also used in everyday life as a fibrous raw material, which led to its association with the name "red hemp shrub".

In the folk practice of the nomadic and semi-nomadic peoples of Central Asia, the plant was used in the form of aqueous infusions and decoctions. Data on its use for conditions accompanied by nervous tension and a feeling of internal anxiety have been noted. In the ethnocultural context, the plant was perceived as a means of restoring internal balance.

In a number of regions, the use of the aerial part for ritual purposes as an element of cleansing practices is mentioned. In some local traditions, dry leaves were burned in small quantities as part of space cleansing rituals. These practices were cultural in nature and were not accompanied by medical interpretation.

In Europe, the plant is found mainly as an introduced species and does not have a deep historical tradition of folk use. In modern phytotherapeutic systems of Europe and Russia, the use of Apocynum venetum is mainly associated with borrowing data from Chinese phytotherapy.

Thus, the geography of use of Apocynum venetum is historically concentrated in China and adjacent regions of Central Asia, where the plant was used in the form of infusions and decoctions, and also had cultural and ritual significance.