Final answer:
Anticholinesterases will have cholinergic side effects, which occur when the parasympathetic system is activated.
Step-by-step explanation:
Anticholinesterases will have cholinergic side effects. Cholinergic effects occur when the parasympathetic system is activated. These effects can include increased salivation, tears, sweating, and decreased heart rate. Anticholinesterases inhibit the breakdown of acetylcholine, leading to increased cholinergic activity and the associated side effects.