SPL Set ID: 594d7a82-af1d-41c4-98ee-0ea6895fc237
1 drug(s) with this SPL Set ID
Penicillamine, USP is a chelating agent used in the treatment of Wilson's disease. It is also used to reduce cystine excretion in cystinuria and to treat patients with severe, active rheumatoid arthritis unresponsive to conventional therapy (see INDICATIONS ). It is 3-mercapto-D-valine. It is a white or practically white, crystalline powder, freely soluble in water, slightly soluble in alcohol, and insoluble in ether, acetone, benzene, and carbon tetrachloride. Although its configuration is D, it is levorotatory as usually measured: [α] 25°= -62.5° ± 2° (c = 1, 1N NaOH), D calculated on a dried basis. The structural formula is: C 5 H 11 NO 2 S M.W. 149.21 It reacts readily with formaldehyde or acetone to form a thiazolidine-carboxylic acid. Penicillamine capsules, USP for oral administration contain 250 mg of penicillamine, USP. Each capsule contains the following inactive ingredients: magnesium stearate and mannitol. Each capsule shell contains: gelatin, sodium lauryl sulfate and titanium dioxide. The imprinting ink contains: black iron oxide, potassium hydroxide, propylene glycol and shellac. Structure