ANTI HISTAMINES/ PHARMACOLOGY/ TYPES OF ANTIHISTAMINES/ CLASSIFICATION

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📚 Dive deep into the world of ANTIHISTAMINES with this comprehensive pharmacology guide! Whether you're a medical student, healthcare professional, or just curious about how allergy medications work, this video breaks down everything you need to know:

🔹 What are Antihistamines?

How histamine receptors (H1, H2, H3, H4) function in the body.

Role in allergies, acid reflux, and more 313.

🔹 Classification & Types

First-generation vs. second-generation H1 blockers (sedating vs. non-sedating) with examples like diphenhydramine (Benadryl) and cetirizine (Zyrtec) 514.

H2 antagonists (e.g., famotidine, ranitidine) for gastric acid disorders 613.

Brief mention of H3/H4 receptors (emerging research) 6.

🔹 Key Differences

CNS penetration, side effects (e.g., drowsiness, anticholinergic effects), and clinical uses 1314.

🔹 Pharmacology Made Simple

Mechanism of action, indications (allergic rhinitis, urticaria, GERD), and contraindications 313.

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