Tag: Biperiden

Explore our medication guides and pharmacology articles within this category.

What drug is an m1 antagonist?: Selective and Non-selective Muscarinic Blockers

Oct 14, 2025 •

4 min read

**Fact**: M1 muscarinic receptors are predominantly located in the central nervous system and are involved in cognitive functions. This article explores what drug is an m1 antagonist, differentiating between selective and non-selective agents and detailing their pharmacological roles.

Is Biperiden Available in the US? A Review of Its Status

Oct 13, 2025 •

3 min read

Although approved by the U.S. Food and Drug Administration (FDA) in 1959, the question 'Is biperiden available in the US?' has a clear answer: no, it has been discontinued and is no longer marketed in the United States [1.2.1, 1.2.3, 1.2.4].