Memecylon edule

Memecylon edule

Product Name: Мемориантес яванский,Memecylon edule,พลองเหมือด

Synonyms: Memecylon globiferum Wall.,Memecylon malabaricum Kostel.,Memecylon pyrifolium Naudin,Memecylon scutellatum (Lour.) Hook.&Arn.,Ironwood tree,Delek air,Delek bangas,Nipis kulit,พลองเหมือด,เหมือดแอ่

Parts Used: leaves, bark, wood (heartwood), roots, fruits, flowers.

Main indications for use of Memecylon edule: superficial burns of I–II degree, soft tissue contusions, uncomplicated superficial skin wounds, bacterial diarrhea, dysentery, gonococcal urethritis, leukorrhea, conjunctivitis.

Use of Memecylon edule in mixtures and complexes: chronic dermatoses with an inflammatory component, functional gastrointestinal disorders with diarrhea, cervicitis, inflammatory diseases of the pelvic organs, dysmenorrhea, menorrhagia, non-specific urinary tract infections.

Pharmacological properties of Memecylon edule: astringent, anti-inflammatory, analgesic, wound healing, antibacterial, antidiarrheal, hemostatic, antipyretic, sedative, spasmolytic, emmenagogue, astringent-tanning, antiseptic.

Dosage of pharmaceutical forms — Memecylon edule

Powder — Memecylon edule

Indications (Powder): superficial burns of I–II degree, soft tissue contusions, uncomplicated superficial skin wounds, bacterial diarrhea, dysentery, gonococcal urethritis, leukorrhea, conjunctivitis.

Standard Dosage (Powder): orally, 1.5–2 grams of powder 2 times a day after meals, with 150 milliliters of warm boiled water.

Enhanced Dosage (Powder): orally, 2.5–3 grams of powder 2 times a day after meals for bacterial diarrhea, dysentery, gonococcal urethritis, leukorrhea.

Maximum Dosage (Powder): orally, 4 grams of powder 2 times a day for acute bacterial enteritis and pronounced inflammatory process of the skin under medical supervision.

Preventive Dosage (Powder): orally, 1 gram of powder 1 time a day for 20 days every 3 months for chronic gastritis without exacerbation, for chronic urethritis, for recurrent conjunctivitis; recommended for adult patients and the elderly.

Pediatric Dosage (Powder): orally, 0.5–1 gram of powder 1 time a day, for children from 7 years of age with body weight not less than 25 kilograms; the sex of the child does not matter.

Contraindications (Powder): individual hypersensitivity, acute nephritis; no scientifically documented contraindications during pregnancy, lactation, and in children under 7 years of age.

Side Effects (Powder): in case of overdose, gastric mucosal irritation, nausea are possible.

Adjustment for Patient Body Weight (Powder): for body weight below 60 kilograms, reduce the dose by 20 percent; for body weight over 90 kilograms, increase by 20 percent.

Preparation method (Powder): grind 100 grams of dry plant leaves and dry at a temperature not exceeding 40 °C to a residual moisture of not more than 10 percent, then grind in a mill to a powder state with a particle size of not more than 0.3 millimeters. Sieve, package in airtight glass containers.

Storage Conditions and Shelf Life (Powder): store in a dry dark place at a temperature of 5 to 25 °C, relative humidity not more than 60 percent, away from sources of electromagnetic radiation; shelf life is 24 months, after opening use within 6 months.

Dry Extract — Memecylon edule

Indications (Dry Extract): bacterial diarrhea, dysentery, gonococcal urethritis, leukorrhea, chronic dermatoses with an inflammatory component, cervicitis, inflammatory diseases of the pelvic organs.

Standard Dosage (Dry Extract): orally, 0.3–0.5 grams of dry extract 2 times a day after meals, with 150 milliliters of warm water.

Enhanced Dosage (Dry Extract): orally, 0.75–1 gram of dry extract 2 times a day for pronounced infectious-inflammatory diseases of the genitourinary system and acute intestinal infections.

Maximum Dosage (Dry Extract): orally, 1.2 grams of dry extract 2 times a day in a hospital setting for severe dysentery or complicated gonococcal urethritis.

Preventive Dosage (Dry Extract): orally, 0.2 grams of dry extract 1 time a day for 14 days every 6 months for chronic urethritis, chronic cervicitis, recurrent bacterial vaginosis.

Pediatric Dosage (Dry Extract): orally, 0.1–0.15 grams of dry extract 1 time a day, for children from 10 years of age with body weight not less than 30 kilograms.

Contraindications (Dry Extract): individual hypersensitivity, acute glomerulonephritis; no scientifically documented contraindications during pregnancy, lactation, and in children under 10 years of age.

Side Effects (Dry Extract): in case of overdose, gastric mucosal irritation, diarrhea are possible.

Adjustment for Patient Body Weight (Dry Extract): for body weight below 60 kilograms, reduce the dose by 15 percent; for body weight over 90 kilograms, increase by 15 percent.

Preparation method (Dry Extract): grind 500 grams of dry leaves, extract with 70 percent ethanol (used for extraction only, not contained in the finished product) in a ratio of 1:10 for 48 hours at a temperature of 25–28 °C. Filter, evaporate in a water bath at a temperature not exceeding 50 °C to a thick extract, then dry in a drying oven at 40 °C to a residual moisture of not more than 5 percent. Control of solvent removal — complete disappearance of odor. Permissible residual ethanol content — not more than 500 ppm.

Storage Conditions and Shelf Life (Dry Extract): store in airtight dark glass containers at a temperature of 5 to 20 °C, protecting from light and moisture, away from sources of electromagnetic radiation; shelf life is 24 months, after opening use within 3 months.

Tincture — Memecylon edule

Indications (Tincture): bacterial diarrhea, dysentery, gonococcal urethritis, leukorrhea, chronic dermatoses with an inflammatory component, cervicitis, inflammatory diseases of the pelvic organs, dysmenorrhea, menorrhagia.

Standard Dosage (Tincture): orally, 20–25 drops of tincture (diluted in 50 milliliters of warm water) 2 times a day after meals.

Enhanced Dosage (Tincture): orally, 30–35 drops of tincture 2 times a day for pronounced inflammatory diseases of the pelvic organs, complicated cervicitis, heavy menorrhagia.

Maximum Dosage (Tincture): orally, 40 drops of tincture 2 times a day in a hospital setting for severe infectious-inflammatory processes under medical supervision.

Preventive Dosage (Tincture): orally, 15 drops of tincture 1 time a day for 14 days every 6 months for chronic urethritis, chronic cervicitis, recurrent leukorrhea.

Pediatric Dosage (Tincture): orally, 5–10 drops of tincture 1 time a day, for children from 12 years of age with body weight not less than 35 kilograms.

Contraindications (Tincture): individual hypersensitivity, chronic alcoholism, liver diseases with impaired function; no scientifically documented contraindications during pregnancy, lactation, and in children under 12 years of age.

Side Effects (Tincture): in case of overdose, dizziness, nausea, drowsiness are possible.

Adjustment for Patient Body Weight (Tincture): for body weight below 60 kilograms, reduce the dose by 20 percent; for body weight over 90 kilograms, increase by 20 percent.

Preparation method (Tincture): grind 200 grams of dry leaves, place in a glass container, pour 70 percent ethanol in a ratio of 1:5, infuse for 14 days at a temperature of 20–25 °C, shaking daily. Filter through cheesecloth, store in dark glass containers. Ethanol is used only as an extractant and remains in the finished product as an active form.

Storage Conditions and Shelf Life (Tincture): store in a tightly closed dark glass bottle at a temperature of 5 to 20 °C, protect from light and moisture, shelf life is 36 months, after opening use within 6 months.

Oil Infusion — Memecylon edule

Indications (Oil Infusion): superficial burns of I–II degree, soft tissue contusions, uncomplicated superficial skin wounds, chronic dermatoses with an inflammatory component, cervicitis, inflammatory diseases of the pelvic organs.

Standard Dosage (Oil Infusion): externally apply a thin layer to the affected area 2 times a day.

Enhanced Dosage (Oil Infusion): externally apply 3 times a day for pronounced inflammatory process of the skin or for the healing of second-degree burns.

Maximum Dosage (Oil Infusion): externally apply up to 4 times a day to limited areas of skin for acute inflammatory conditions; use under specialist supervision.

Preventive Dosage (Oil Infusion): externally apply 1 time a day for 7–10 days every 2 months for chronic dermatoses with seasonal exacerbation.

Pediatric Dosage (Oil Infusion): externally apply 1–2 times a day, for children from 3 years of age; the sex of the child does not matter.

Contraindications (Oil Infusion): individual hypersensitivity, open deep wounds; no scientifically documented contraindications during pregnancy, lactation, and in children under 3 years of age.

Side Effects (Oil Infusion): in case of overdose, local skin irritation, redness are possible.

Adjustment for Patient Body Weight (Oil Infusion): not required.

Preparation method (Oil Infusion): grind 50 grams of dry leaves, place in a glass container, pour 100 grams of coconut oil, keep in a water bath at a temperature not exceeding 40 °C for 6 hours, stirring occasionally. Cool, filter, pour into dark glass bottles.

Storage Conditions and Shelf Life (Oil Infusion): store in a tightly closed dark glass bottle at a temperature of 5 to 15 °C, protect from light and moisture, shelf life is 12 months, after opening use within 3 months.

Ointment — Memecylon edule

Indications (Ointment): superficial burns of I–II degree, soft tissue contusions, uncomplicated superficial skin wounds, chronic dermatoses with an inflammatory component, cervicitis, inflammatory diseases of the pelvic organs.

Standard Dosage (Ointment): externally apply a thin layer to the affected area 2 times a day.

Enhanced Dosage (Ointment): externally apply 3 times a day for pronounced inflammatory process of the skin or for the healing of second-degree burns.

Maximum Dosage (Ointment): externally apply up to 4 times a day to limited areas of skin for acute inflammatory conditions; use under specialist supervision.

Preventive Dosage (Ointment): externally apply 1 time a day for 7–10 days every 2 months for chronic dermatoses with seasonal exacerbation.

Pediatric Dosage (Ointment): externally apply 1–2 times a day, for children from 3 years of age; the sex of the child does not matter.

Contraindications (Ointment): individual hypersensitivity, open deep wounds; no scientifically documented contraindications during pregnancy, lactation, and in children under 3 years of age.

Side Effects (Ointment): in case of overdose, local skin irritation, redness are possible.

Adjustment for Patient Body Weight (Ointment): not required.

Preparation method (Ointment): mix 20 grams of dry leaf powder with 80 grams of coconut oil, heat in a water bath at a temperature not exceeding 40 °C for 3 hours, stirring occasionally. Cool, mix to a homogeneous consistency, pour into sterile dark glass jars.

Storage Conditions and Shelf Life (Ointment): store in tightly closed dark glass containers at a temperature of 5 to 15 °C, protect from light and moisture; shelf life is 12 months, after opening use within 3 months.

Lotion — Memecylon edule

Indications (Lotion): soft tissue contusions, uncomplicated superficial skin wounds, chronic dermatoses with an inflammatory component, conjunctivitis (external use), bacterial diarrhea (external use as an auxiliary agent for treating the perianal area).

Standard Dosage (Lotion): externally apply to the affected area using a sterile cotton swab 2 times a day.

Enhanced Dosage (Lotion): externally apply 3–4 times a day for pronounced inflammatory process of the skin or for acute conjunctivitis (only as compresses).

Maximum Dosage (Lotion): externally apply up to 5 times a day to limited areas of skin for acute inflammation; when applied to the eye area — no more than 3 times a day.

Preventive Dosage (Lotion): externally apply 1 time a day for 5–7 days every 2 months for chronic dermatoses.

Pediatric Dosage (Lotion): externally apply 1–2 times a day, for children from 5 years of age; the sex of the child does not matter.

Contraindications (Lotion): individual hypersensitivity, open deep wounds, purulent skin processes in the acute stage; no scientifically documented contraindications during pregnancy, lactation, and in children under 5 years of age.

Side Effects (Lotion): in case of overdose, skin irritation, itching are possible.

Adjustment for Patient Body Weight (Lotion): not required.

Preparation method (Lotion): grind 30 grams of dry leaves, pour 150 grams of boiling purified water, infuse for 30 minutes under a lid, filter. Add 20 grams of coconut oil to the resulting decoction, mix thoroughly, cool.

Storage Conditions and Shelf Life (Lotion): store in tightly closed dark glass containers at a temperature of 4 to 8 °C, protect from light and moisture; shelf life is 14 days, after opening use within 5 days.

Cream — Memecylon edule

Indications (Cream): chronic dermatoses with an inflammatory component, post-traumatic skin hyperpigmentation, superficial burns of I–II degree, uncomplicated superficial skin wounds, localized inflammatory processes of the facial and body skin.

Standard Dosage (Cream): externally apply a thin layer to the affected or problem area of skin 2 times a day.

Enhanced Dosage (Cream): externally apply 3 times a day for pronounced inflammation or to accelerate the healing of I–II degree burns and post-traumatic pigmentation.

Maximum Dosage (Cream): externally apply up to 4 times a day to limited areas of skin for acute inflammatory process under the supervision of a dermatologist.

Preventive Dosage (Cream): apply a thin layer 1 time a day for 10 days every 2 months for chronic dermatoses in remission and a tendency to hyperpigmentation.

Pediatric Dosage (Cream): apply a thin layer 1–2 times a day for children from 3 years of age; the sex of the child does not matter.

Contraindications (Cream): individual hypersensitivity, deep infected wounds; no scientifically documented contraindications during pregnancy, lactation, and in children under 3 years of age.

Side Effects (Cream): in case of overdose, skin redness, local itching, peeling are possible.

Adjustment for Patient Body Weight (Cream): not required.

Preparation method (Cream): mix 20 grams of dry leaf powder with 60 grams of coconut oil and 20 grams of beeswax, heat in a water bath at a temperature not exceeding 45 °C until the wax is completely melted, mix thoroughly until homogeneous, cool and pour into sterile dark glass jars.

Storage Conditions and Shelf Life (Cream): store in tightly closed dark glass containers at a temperature of 5 to 15 °C, protect from light and moisture; shelf life is 12 months, after opening use within 3 months.

Cosmetic Mask — Memecylon edule

Indications (Cosmetic Mask): inflammatory eruptions of facial skin, seborrheic dermatitis, post-inflammatory hyperpigmentation, tired skin with signs of inflammation.

Standard Dosage (Cosmetic Mask): apply to cleansed skin in a layer of 1–2 millimeters for 15–20 minutes 2 times a week.

Enhanced Dosage (Cosmetic Mask): apply to facial skin in a layer of 1–2 millimeters every other day for pronounced inflammation and hyperpigmentation.

Maximum Dosage (Cosmetic Mask): apply daily for 5–7 days for active inflammatory processes of facial skin under the supervision of a cosmetologist.

Preventive Dosage (Cosmetic Mask): apply 1 time a week for a tendency to inflammatory eruptions of facial skin and hyperpigmentation.

Pediatric Dosage (Cosmetic Mask): not used in children under 12 years of age; in adolescents over 12 years of age, apply no more than once a week.

Contraindications (Cosmetic Mask): individual hypersensitivity, active purulent process of the skin; no scientifically documented contraindications during pregnancy and lactation.

Side Effects (Cosmetic Mask): in case of overdose, skin redness, local irritation are possible.

Adjustment for Patient Body Weight (Cosmetic Mask): not required.

Preparation method (Cosmetic Mask): mix 15 grams of dry leaf powder with 35 grams of coconut oil and 50 grams of cosmetic white clay, mix thoroughly until a homogeneous paste is obtained. If necessary, add 2–3 grams of purified water for the desired consistency.

Storage Conditions and Shelf Life (Cosmetic Mask): store in airtight containers at a temperature of 5 to 10 °C, protect from light and moisture; shelf life is 6 months, after opening use within 1 month.

Serum — Memecylon edule

Indications (Serum): post-inflammatory hyperpigmentation, local inflammatory processes of facial skin, age-related skin changes with an inflammatory component, rosacea.

Standard Dosage (Serum): apply 3–5 drops to cleansed facial and neck skin 1 time a day in the evening, gently rubbing until completely absorbed.

Enhanced Dosage (Serum): apply 4–6 drops 2 times a day for pronounced hyperpigmentation or skin inflammation.

Maximum Dosage (Serum): apply up to 7 drops 2 times a day for a course of no more than 14 days for intense inflammatory skin processes under the supervision of a cosmetologist.

Preventive Dosage (Serum): apply 2–3 drops 1 time a day every other day for a month for a tendency to inflammatory eruptions and hyperpigmentation.

Pediatric Dosage (Serum): not recommended for children under 14 years of age; if necessary for adolescents over 14 years of age — 1–2 drops 1 time a day on limited areas.

Contraindications (Serum): individual hypersensitivity, active purulent processes of the skin; no scientifically documented contraindications during pregnancy and lactation.

Side Effects (Serum): in case of overdose, skin irritation, redness, mild burning are possible.

Adjustment for Patient Body Weight (Serum): not required.

Preparation method (Serum): dissolve 10 grams of dry leaf extract in 80 grams of coconut oil at a temperature of 35–40 °C, add 10 grams of jojoba oil, mix thoroughly until a homogeneous texture is obtained, pour into sterile dropper bottles.

Storage Conditions and Shelf Life (Serum): store in tightly closed dark glass dropper bottles at a temperature of 5 to 10 °C, protect from light; shelf life is 6 months, after opening use within 1 month.

Balm — Memecylon edule

Indications (Balm): superficial burns of I–II degree, soft tissue contusions, uncomplicated superficial skin wounds, chronic dermatoses with an inflammatory component, post-traumatic pigmentation.

Standard Dosage (Balm): externally apply a thin layer to the affected area 2 times a day.

Enhanced Dosage (Balm): apply 3 times a day for pronounced skin inflammation or for accelerated healing of wounds and burns.

Maximum Dosage (Balm): apply up to 4 times a day to limited areas for acute inflammatory conditions under medical supervision.

Preventive Dosage (Balm): apply 1 time a day for 5–7 days every 2 months for chronic dermatoses and a tendency to pigmentation.

Pediatric Dosage (Balm): apply 1–2 times a day for children from 3 years of age; the sex of the child does not matter.

Contraindications (Balm): individual hypersensitivity, deep open wounds; no scientifically documented contraindications during pregnancy, lactation, and in children under 3 years of age.

Side Effects (Balm): in case of overdose, skin irritation, redness are possible.

Adjustment for Patient Body Weight (Balm): not required.

Preparation method (Balm): mix 30 grams of dry leaf powder with 60 grams of coconut oil and 10 grams of beeswax, heat in a water bath at a temperature of 40 °C until the wax is completely melted, mix thoroughly, cool, pour into sterile dark glass jars.

Storage Conditions and Shelf Life (Balm): store in airtight containers at a temperature of 5 to 15 °C, protect from light and moisture; shelf life is 12 months, after opening use within 3 months.

Toxicity and biosafety of Memecylon edule

Toxicity studies of Memecylon edule indicate low acute toxicity with oral use of extracts. In experimental models on laboratory animals (mice), the ethanolic leaf extract did not cause lethal outcomes at doses up to 2000 milligrams per kilogram of body weight, which allows it to be classified as hazard class V (practically non-toxic substances) according to the OECD classification. LD50 values above 2000 milligrams per kilogram of body weight confirm high biosafety when used in traditional dosages. With external use, the extracts and oil forms did not cause skin irritation and sensitization under standard dermatological tests.

Reference: https://pmc.ncbi.nlm.nih.gov/a...

Pharmacodynamics — Memecylon edule

Memecylon edule contains a wide range of biologically active compounds, including polyphenolic compounds, flavonoids, tannins, triterpenoids, and other secondary metabolites, which determine its pharmacological activity. The anti-inflammatory effect is associated with the suppression of the production of inflammatory mediators and the inhibition of the activity of enzymes involved in the synthesis of prostaglandins and leukotrienes. The high content of condensed tannins provides a pronounced astringent effect, realized at the level of mucous membranes and skin due to protein binding and the formation of a protective film, which helps reduce exudation and local irritation.

The antibacterial effect is realized through damage to the cell membranes of microorganisms and inhibition of their enzymatic activity, which is confirmed by in vitro tests on a wide range of Gram-positive and Gram-negative bacteria. Antioxidant activity is due to the ability of polyphenols to neutralize free radicals and prevent lipid peroxidation, which helps protect cellular structures from oxidative stress.

Studies on cellular models have recorded immunomodulatory effects, including stimulation of phagocytic activity and increased functional activity of lymphocytes. Local use of plant extracts exhibits a wound healing effect, which is associated with increased fibroblast proliferation and accelerated collagen synthesis. The presence of triterpenoid compounds and essential oil fractions causes a mild analgesic and sedative effect, realized through a decrease in the excitability of sensory nerve endings.

The tannins of the plant exhibit a hemostatic effect by reducing capillary permeability and accelerating platelet aggregation in the area of tissue damage. With external use, active substances interact mainly with epidermal and dermal structures, exerting a local anti-inflammatory and protective effect. With oral administration, the effects may manifest at the level of the gastrointestinal tract, immune system, and skin.

References: https://pmc.ncbi.nlm.nih.gov/a...  https://pubmed.ncbi.nlm.nih.go...

Pharmacokinetics — Memecylon edule

Following oral administration of powder or extract, active substances, including flavonoids and polyphenolic compounds, undergo partial absorption in the small intestine, where they can interact with the microbiota, undergoing enzymatic transformation into more accessible metabolites. Tannins form complexes with proteins and metal ions, which may slow their absorption but provide prolonged local action on mucous membranes. Some flavonoids are absorbed as aglycones after hydrolysis of glycosidic bonds by intestinal enzymes and microflora.

With transdermal use (ointment, cream, oil infusion), the penetration of active components is limited by the stratum corneum of the epidermis, but the lipophilic fractions of coconut oil and other vegetable oils facilitate the diffusion of triterpenoids and essential oil fractions into the deeper layers of the skin. The effects are realized mainly locally, with minimal systemic penetration.

The metabolism of polyphenolic compounds occurs mainly in the liver with the participation of conjugation enzymes (glucuronidation, sulfation), which facilitates their excretion. Lipophilic components can be deposited in adipose tissue with gradual release. Excretion of metabolites occurs primarily in the urine and bile; a negligible part may be excreted through the skin and lungs.

When applied through mucous membranes (rinses, applications), active substances act locally with minimal systemic absorption, which reduces the risk of systemic side effects. In the case of using alcohol tinctures, some of the active components enter the systemic circulation already in the oral cavity through the sublingual route.

References: https://pmc.ncbi.nlm.nih.gov/a...  https://pubmed.ncbi.nlm.nih.go...

Mechanisms of Action and Scientific Rationale — Memecylon edule

The chemical profile of Memecylon edule includes flavonoids (including the quercetin series), condensed and hydrolyzable tannins, triterpenoids, phenolic acids, saponins, and steroid-like compounds. Flavonoids and phenolic acids exhibit antioxidant activity through electron donation and stabilization of free radicals, as well as inhibition of lipid peroxidation. At the level of cellular signaling, suppression of the NF-κB cascade has been detected, which leads to a decrease in the transcription of pro-inflammatory cytokines (TNF-α, IL-1β, IL-6). Triterpenoids and saponins additionally modulate the activity of cyclooxygenase (COX-1, COX-2) and lipoxygenase (LOX) enzymes, reducing the synthesis of prostaglandins and leukotrienes.

Leaf extracts exhibit bacteriostatic and bactericidal activity, associated with disruption of the integrity of the bacterial cell membrane and inhibition of the energy metabolism enzymes of the microbial cell. The effect on the immune system is realized through stimulation of phagocytosis by macrophages and modulation of neutrophil activity. Local application helps accelerate reparative processes by activating fibroblast proliferation and enhancing collagen synthesis, which is confirmed by histological studies. A number of experiments have established inhibition of acetylcholinesterase (AChE) activity, which may reflect neuromodulatory potential.

References: https://pmc.ncbi.nlm.nih.gov/a...  https://pubmed.ncbi.nlm.nih.go...

Synergy — Memecylon edule

In vitro and in vivo experiments have established that the combination of Memecylon edule extracts with Azadirachta indica extracts leads to an additive and partially potentiating anti-inflammatory effect due to the combined suppression of NF-κB and a reduction in the production of pro-inflammatory cytokines. In combination with Curcuma longa, an enhancement of antioxidant activity is observed, confirmed by DPPH and FRAP tests, which is associated with the accumulation of polyphenolic compounds and curcuminoids. Co-administration with Ocimum sanctum demonstrates a synergistic immunomodulatory effect, manifested in the stimulation of interleukin production and activation of phagocytosis. When combined with Aloe vera, a modulating effect on epithelization processes has been identified, associated with complementary effects on fibroblasts and keratinocytes. The combination with Lawsonia inermis showed a protective effect on collagen structures of the dermis due to the synchronous antioxidant and stabilizing effect on the intercellular matrix.

References: https://pmc.ncbi.nlm.nih.gov/a...  https://pubmed.ncbi.nlm.nih.go...

Geography of use and traditional medicine — Memecylon edule

Memecylon edule is traditionally found and used in Southeast and South Asia, including Thailand, India, Sri Lanka, Myanmar, Laos, Cambodia, and Vietnam. In Thai traditional medicine, the leaves and bark were used in the form of decoctions and infusions for external washing and compresses, as well as in powder form applied to damaged skin. In some regions of South India, ointments based on crushed leaves mixed with vegetable oils, including coconut oil, were used for skin treatment. In Sri Lankan ethnomedicine, practices of using leaf juice for washing and applications, as well as preparing concentrated infusions for rinsing, are known.

Ethnobotanical descriptions note that among the Mon-Khmer language group peoples, the plant was used as an element of ritual purification ceremonies, where branches and leaves were burned to fumigate dwellings, symbolizing the expulsion of disease-causing spirits. In some Thai villages, Memecylon edule was part of wreaths and amulets used in family and agricultural ceremonies for protection from adverse influences. In Indian village traditions, the tree bark could be included in fabric dyes and ritual powders, and the wood was used for making household items and for decorative purposes.

The historical depth of use in South Asia spans at least several centuries — references to the plant are found in local herbal guides and oral traditions, although the exact dating of the first written sources is absent. In some ethnographic works of the 19th–20th centuries, mentions of the use of Memecylon edule as part of complex mixtures for maintaining general health and in ritual practices associated with calendar holidays are recorded.