Pharmacology For Nursing Students, Nursing School & NCLEX RN / NCLEX LPN - Beta Blockers in 37 Seconds Mode of Action: A beta blocker blocks Beta 1 Receptors in the heart to decrease heart Rate, cardiac output, and cardiac oxygen consumption. Examples of beta blockers are metoprolol, propranolol, and atenolol. Medications typically end in LOL. Mnemonic: Use the acronymn MANBABE to remember the cardioselective beta blocker medications. Uses: Beta blockers can be used to treat hypertension, acute

When Beta Blockers Do More Than Slow the Heart Beta blockers reduce heart rate and blood pressure by blocking beta-adrenergic receptors. With long-term use, that same mechanism can affect energy, circulation, exercise capacity, and sexual function in some people. ⚡ Fatigue Lower heart rate and contractility reduce cardiac output. In some patients this means less oxygen delivery to tissues, leading to persistent tiredness. Lipophilic beta blockers that enter the brain may further worsen fatigue.