Red Raspberry (Rubus idaeus) leaf is the premier botanical uterine tonic, containing the alkaloid fragarine, along with abundant tannins and flavonoids. Fragarine acts selectively to tone and strengthen the smooth muscles of the pelvic region and uterus, which helps coordinate uterine contractions during labor and reduces excessive menstrual blood loss. Its rich tannins provide a gentle astringent action that calms pelvic cramps and loose stools.
Educational information only — never stop or change a prescribed medication without talking to your prescriber first.
CRITICAL: Do not consume red raspberry leaf tea in therapeutic doses during the first trimester of pregnancy unless specifically directed by a healthcare professional, as its uterine-stimulating effects should be avoided early on.
Evidence level: Strong
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