Physostigmine

**Definition:** A cholinesterase inhibitor that is rapidly absorbed through membranes. It can be applied topically to the conjunctiva. It also can cross the blood-brain barrier and is used when central nervous system effects are desired, as in the treatment of severe anticholinergic toxicity.

**Tree numbers:** - D02.241.081.251.583.682 - D03.132.436.545 - D03.633.100.473.402.545 - D03.633.100.496.500.500.545