What common suffix is found at the end of many antihistamine names?

The suffix commonly found at the end of many antihistamine names is "-amine." This suffix is derived from the chemical structure of antihistamines, which often contain amine groups that contribute to their pharmacological action. Antihistamines function by blocking the action of histamine at the H1 receptor, thereby reducing allergy symptoms. The "-amine" suffix is a clear indicator of their classification as amine compounds, emphasizing their role in mediating various physiological responses.

Other suffixes, while they may appear in different classes of medications, do not specifically indicate the antihistamine category. For instance, "-ene" typically pertains to alkene compounds, "-ol" is associated with alcohols, and "-ide" often indicates a particular ion or anions in substances but does not have the same relevance to antihistamines. Therefore, recognizing the "-amine" suffix is important for identifying antihistamines in veterinary pharmacology.