PREPARATIONS
OLEORESINA ASPIDII—OLEORESIN ASPIDIUM—OLEORESIN MALE FERN
Made by percolation with ether, distillation and evaporation of the ether.
Dose.—Horses and cattle, 3 to 6 drs.; sheep and pigs, 1 to 2 drs.; dogs and cats, 15 ms. to 1 dr.
Action and Uses.—Male fern is irritant, vermicide laxative, large doses of the drug cause hemorrhagic gastro-enteritis, tremors, weakness, stupor, coma, acute nephritis and cystitis. Oleoresin of male fern is one of the most effectual remedies for tapeworm, particularly those inhabiting dogs.