Atropine Sulfate

**Semantic type:** Organic Chemical|Pharmacologic Substance

**Definition:** The sulfate salt of atropine, a naturally-occurring alkaloid isolated from the plant Atropa belladonna. Atropine functions as a sympathetic, competitive antagonist of muscarinic cholinergic receptors, thereby abolishing the effects of parasympathetic stimulation. This agent may induce tachycardia, inhibit secretions, and relax smooth muscles. (NCI04)

**Synonyms:** - ATROPINE SULFATE - atropine sulfate