MAO-B Inhibitor: What It Is and Why It Matters

When you hear MAO-B inhibitor, a class of medicines that selectively block the monoamine oxidase‑B enzyme, slowing the breakdown of dopamine and other brain chemicals. Also known as MAO‑B blocker, it plays a crucial role in managing movement disorders and mood conditions. MAO-B inhibitor therapy is often linked to two major health challenges: Parkinson's disease, a progressive neurological disorder marked by tremor, stiffness, and slowed movement. Another key connection is with depression, a mood disorder where low neurotransmitter levels contribute to persistent sadness. By preserving dopamine, these drugs help smooth out the motor symptoms of Parkinson’s and can boost mood in depressive states. The relationship is straightforward: MAO‑B inhibitors reduce dopamine breakdown, which in turn supports better brain signaling.

Popular MAO‑B Inhibitors and Their Profiles

Among the many drugs in this class, two stand out for their clinical track record. Selegiline, the original MAO‑B inhibitor introduced in the 1970s, is available in oral and transdermal forms. It’s often prescribed early in Parkinson’s treatment to delay the need for levodopa, and it can also serve as an adjunct in major depressive disorder. Another widely used option is Rasagiline, a newer, once‑daily tablet that offers a more selective MAO‑B blockade with fewer dietary restrictions. Both drugs share the core attribute of protecting dopamine, yet they differ in dosing flexibility, side‑effect profiles, and how they interact with other medications.

Understanding these nuances helps you choose the right therapy for your situation or ask better questions at the doctor’s office. Below you’ll find a curated set of articles that break down allergy risks, compare erectile‑dysfunction meds, explain skin‑care tips, and more – all tagged with MAO‑B inhibitor because they touch on related drug safety, dosing strategies, or condition management. Dive in to get practical guidance, side‑effect warnings, and buying tips that complement the science we just covered.

October 15, 2025

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