Cardiovascular system | Pharmacology Mentor

Sodium Channel Blockers (SCBs)

Introduction Sodium (Na⁺) channels are integral membrane proteins responsible for the rapid upstroke (phase 0) of the action potential in excitable cells such as neurons and cardiomyocytes. By selectively perming…

Pharmacology Mentor January 26, 2025

Pharmacology of H2 Receptor Antagonists

Histamine H2 receptor antagonists are competitive blockers of gastric parietal-cell H2 receptors that suppress basal and stimulated acid secretion and are used for GERD, peptic ulcer disease, hypersecretory states, and…

Pharmacology Mentor October 6, 2025

ANS Pharmacology

Sympathomimetics/Adrenergic agonists

1 · Introduction Sympathomimetic agents—or adrenergic agonists—comprise a pharmacological super-family that mimics or amplifies the actions of endogenous catecholamines (noradrenaline, adrenaline and dopamine) at α1, α2, β1, β2, β3 and…

Pharmacology Mentor October 5, 2025

Sodium Channel Blockers (SCBs)

Pharmacology of H2 Receptor Antagonists

Sympathomimetics/Adrenergic agonists

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