Rhamnus catharticus (common buckthorn, hartshorn). A genus of the plant
family RHAMNACEAE. Dioecious bush or small tree, with thorny branches. Leathery,
veined, oval leaves, small indistinct, yellow-green flowers and purplish-black fruits
containing two to four woody seeds.
Animals most affected
Cattle, sheep, goats, (dogs, horses).
Grazing off branches, ingestion of fruit. Poisonings uncommon.
Contains potent emetic heterosides: anthracene glycosides.
Oral doses not known:
Gastrointestinal effects (severe)
haemorrhagic diarrhoea with extremely painful abdominal pain or cramps;
weakness, exhaustion, prostration.
adsorbents, gastric antacids (magnesia);
atropine 0.05 - 0.1 mg/kg 25%:75%, (iv:sc);
treat for shock.