1 adj, pertaining to a substance or condition, such as heat or emotional tension, that promotes sweating. 2 n, a sudorific agent. Sweat glands are stimulated by cholinergic drugs. The alkaloid pilocarpine is a potent sudorific drug, but it is rarely used for that purpose in modern medicine.Also called diaphoretic. adj, pertaining to a substance or condition, such as heat or emotional tension, that promotes sweating. 2 n, a sudorific agent. Sweat glands are stimulated by cholinergic drugs. The alkaloid pilocarpine is a potent sudorific drug, but it is rarely used for that purpose in modern medicine. Also called diaphoretic.