Sympatholytics, adrenergic blockers or adrenergic antagonists

Screenshot 2024 04 25 150119 Sympatholytics, adrenergic blockers or adrenergic antagonists

Sympatholytics, adrenergic blockers, or adrenergic antagonists Sympatholytics, also known as adrenergic blockers or adrenergic antagonists, are a class of drugs that inhibit the actions of the sympathetic nervous system by blocking adrenergic receptors. These receptors are targets for the neurotransmitters adrenaline (epinephrine) and noradrenaline (norepinephrine), and their activation leads to various physiological responses associated with … Read more

Phentolamine: Mechanism, Uses, Side effects

Screenshot 2023 12 28 101008 Phentolamine: Mechanism, Uses, Side effects

Phentolamine is a medication classified as an alpha-adrenergic antagonist, specifically an alpha-blocker. It acts by blocking the effects of norepinephrine and other similar neurotransmitters at alpha-adrenergic receptors. Phentolamine is a non-selective alpha-blocker, meaning it blocks both alpha-1 and alpha-2 receptors. Here are key points about phentolamine: 1. Mechanism of Action Phentolamine blocks the action of … Read more