Select the incorrect statement concerning anticholinergic hallucinogens.
a. in ancient societies, these drugs were used as poisons for assassinations.
b. these drugs are found in many plants that belong to the potato family.
c. these drugs tend to stimulate salivation.
d. they work by blocking the activity of the acetylcholine receptor.

The answer is: c. These drugs tend to stimulate salivation.

Explanation:

Anticholinergic hallucinogens: mostly made up of plant derivatives that grow spontaneously in many parts of the world. The Solanaceae family includes most of these plants.

These alkaloids are constituents of remedies for the treatment of colds symptoms because they block the production of mucus in the nose and throat. They prevent salivation, so that it increases the dryness of the mouth excessively.

Anticholinergics cause constipation and difficulty urinating. All these adverse effects limit the abuse of these substances.  High doses: can cause paralysis of the respiratory system and death of the subject.

They are antagonists of acetylcholine receptors, they produce their effects by blocking cholinergic receptors, particularly those of the muscarinic subtype.

The answer is: c. These drugs tend to stimulate salivation.