Amiloride K sparing diuretic blocks epithelial Na Channel DOC in lithium induced DI Used in liddle syndrome and cystic fibrosis For more MCQs and concepts become pro member by clicking below https://drpharmacologist.testpress.in/products/pro-members/
Atenolol is contraindicated in Hypertension Partial heart block Hypertrophic obstructive cardiomyopathy Classical angina answer : partial heart blockAtenolol is a cardioselective beta blocker and it decreases conduction in heart, so it is contraindicated in Partial heart block For more MCQs and concepts become pro member by clicking below https://drpharmacologist.testpress.in/products/pro-members/
Droxidopa is used in Parkinson’s disease hypertensive emergencies orthostatic hypotension as an emetic answer orthostatic hypotension REF: GG 13E/P 198 Droxidopa: prodrug that is converted to NE FDA-approved for the treatment of orthostatic dizziness and light-headiness in adults with symptomatic neurogenic orthostatic hypotension associated with primary autonomic failure and impaired compensatory autonomic reflexes For more MCQs and concepts become pro member by clicking below https://drpharmacologist.testpress.in/products/pro-members/
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Reflex bradycardia caused by Alpha-1 agonists can be blocked by A. metoprolol B. atropine C. mirtazapine D. Phenylephrine answer B atropineexplanation atropine is an anticholinergic which causes tachycardia, so this can be used in Reflex bradycardia caused by Alpha-1 agonists metoprolol is a cardioselective beta blocker, which causes bradycardia mirtazapine is an atypical antidepressant and blocks α2 autoreceptor Phenylephrine is an alpha agonist, so no action on heart
Droxidopa is used in Parkinson’s disease hypertensive emergenices orthostatic hypotension as an emetic For more MCQs and concepts become pro member by clicking below https://drpharmacologist.testpress.in/products/pro-members/
botulinum toxin acts through?inhibition of acetylcholine releaseDirect action on acetylcholine esteraseDirect action on muscarinic receptorsinhibition of choline uptake answer inhibition of acetylcholine release watch video for explanation