Wild Cherry (Prunus serotina)

Wild cherry (Prunus serotina) contains prunasin and other cyanogenic glycosides that may provide antitussive effects by suppressing cough reflexes. The bark has traditionally been used for respiratory conditions and shows preliminary cardiovascular benefits in animal studies.

Origin & History

Wild cherry (Prunus serotina) is a deciduous tree native to North America, belonging to the Rosaceae family. The medicinal preparation is derived from the bark, which contains cyanogenic glycosides (primarily prunasin), benzaldehyde, eudesmic acid, p-coumaric acid, scopoletin, and tannins. The bark is typically prepared as infusions, tinctures, or standardized extracts for therapeutic use.

Historical & Cultural Context

Wild cherry has a long history in North American indigenous medicine and Mexican folk medicine (where it's called 'capulín'), traditionally used for respiratory conditions, cardiac palpitations, and gastrointestinal disorders. Indigenous peoples particularly valued it for treating coughs, bronchitis, and chronic respiratory conditions.

Health Benefits

• Respiratory support: Traditional use for coughs, bronchitis, and chronic respiratory conditions (preliminary evidence from traditional use and in-vitro studies)
• Cardiovascular health: Reduced systolic blood pressure in hypertensive animal models; human studies showed decreased hypertension markers (preliminary evidence)
• Anti-inflammatory effects: Methanol extracts strongly inhibited nitric oxide production and COX-2 expression in vitro (preliminary evidence)
• Antioxidant activity: Human studies showed decreased markers for oxidative stress, correlated with flavonoid content (limited human evidence)
• Blood sugar management: Leaf and branch extracts showed alpha-glucosidase inhibitory activity beneficial for type 2 diabetes (in-vitro evidence only)

How It Works

Wild cherry's primary bioactive compounds are cyanogenic glycosides, particularly prunasin, which release small amounts of hydrogen cyanide when metabolized. This mechanism may suppress cough reflexes by acting on respiratory centers in the medulla oblongata. The flavonoids and phenolic compounds present may contribute to cardiovascular effects through ACE inhibition and vasodilation pathways.

Scientific Research

The available research lacks specific human clinical trials with PubMed PMIDs, randomized controlled trials, or meta-analyses. A 2020 phytopharmacological review documented in vitro and in vivo evidence for antioxidant, anti-inflammatory, antimicrobial, and antidiabetic actions, with limited human studies showing effects on oxidative stress, inflammation, and hypertension markers.

Clinical Summary

Evidence for wild cherry is primarily based on traditional use and limited preclinical studies. Animal models have shown reduced systolic blood pressure in hypertensive rats, though specific dosages and mechanisms require further investigation. Human clinical trials are lacking, with most evidence coming from historical use for respiratory conditions. In-vitro studies suggest antitussive properties, but controlled human studies are needed to establish efficacy and optimal dosing.

Nutritional Profile

Wild Cherry (Prunus serotina) contains a complex array of macronutrients, micronutrients, and bioactive compounds. Macronutrients per 100g fresh fruit: carbohydrates ~12-15g (primarily fructose and glucose), dietary fiber ~2-3g, protein ~1g, fat ~0.3g, water ~82-85g. Micronutrients: Vitamin C ~7-10mg/100g (bioavailability moderate, affected by processing), Vitamin A (as beta-carotene) ~50-80 IU/100g, potassium ~220-250mg/100g, calcium ~13-15mg/100g, magnesium ~9-11mg/100g, phosphorus ~15-18mg/100g, iron ~0.3-0.4mg/100g, zinc ~0.1mg/100g. Bioactive compounds: Prunasin (cyanogenic glycoside) ~0.5-2mg/g in bark and leaves — NOTE: prunasin metabolizes to hydrogen cyanide; medicinal bark preparations require controlled dosing; fruit pulp contains significantly lower concentrations. Anthocyanins (cyanidin-3-glucoside, cyanidin-3-rutinoside) ~50-150mg/100g in ripe fruit — bioavailability ~5-10%, enhanced by food matrix factors. Chlorogenic acid ~20-40mg/100g. Quercetin and kaempferol glycosides ~5-15mg/100g. Ellagic acid ~trace amounts. Benzaldehyde (from prunasin hydrolysis) contributes to respiratory-soothing properties via bark preparations. Tannins ~2-4% in bark (dry weight) — astringent properties, reduce gastrointestinal absorption when present. Bioavailability notes: Polyphenols exhibit limited systemic bioavailability but demonstrate local anti-inflammatory effects; cyanogenic compounds in bark are partially detoxified by gut microbiota; fruit anthocyanins are best absorbed in mildly acidic gastric environment.

Preparation & Dosage

Traditional herbal dosing (not clinically validated): Infusion - 1 teaspoon dried bark per cup of water, 1 cup three times daily; Tincture (1:5 ratio) - 2-4 ml three times daily. No standardized extract dosages or clinically validated dosing ranges are available. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Marshmallow root, Licorice root, Thyme, Mullein leaf, Elderberry

Safety & Interactions

Wild cherry bark contains cyanogenic glycosides that can release hydrogen cyanide, making high doses potentially toxic. Common side effects may include nausea, dizziness, and gastrointestinal upset. The herb may interact with blood pressure medications due to potential hypotensive effects. Pregnant and nursing women should avoid use due to cyanide content and lack of safety data.