👉 The term "phenothiazine" refers to a class of drugs that are commonly used as anticholinergics (anticholinergic) and antihistamines. These drugs act by blocking the action of acetylcholine, which is a neurotransmitter involved in the communication between nerve cells. Acetylcholine is essential for the proper functioning of many bodily functions, including the regulation of heart rate, blood pressure, and muscle contraction. Phenothiazines are classified based
