Choline is a nutrient chemically similar to B-vitamins needed for proper cell membrane production and muscle work.

Histamine is a natural product derivate of the amino acid histidine, which according to Wikipedia is:

involved in local immune responses, as well as regulating physiological functions in the gut and acting as a neurotransmitter for the brain, spinal cord, and uterus.

Till this day, any "anticholinergic drug" I learned about was also said to be "Antihistamine drug" (and vice versa).

Is any anticholinergic necessarily antihistramine?

Choline is a nutrient chemically similar to B-vitamins needed for proper cell membrane production and muscle work.

Histamine is a natural product derivate of the amino acid histidine, which according to Wikipedia is:

involved in local immune responses, as well as regulating physiological functions in the gut and acting as a neurotransmitter for the brain, spinal cord, and uterus.

Till this day, any "anticholinergic drug" I learned about was also said to be "Antihistamine drug" (and vice versa).

Is any anticholinergic necessarily antihistamine?