Natural Sources of Crude Drugs

1 Plant sources (Senna, Digitalis, Datura, Cascara, Cinchona, Clove, Opium, etc) 2 Animal sources (cochineal, cantharidin, honey, cod liver oil, musk, thyroxin, etc.) 3 Marine sources (sponges, red algae, agar, etc.) 4 Mineral sources (talc, kaolin, kieselguhr, etc.)