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Effect of spinal anaesthesia on plasma concentrations of glutathione S-transferase

Alternative repletion strategies have focused on oral administration of GSH precursors (e.g., cysteine and glycine supplementation 9 ), and intravenous administration of GSH, 10 which although promising, is invasive and inconvenient, and therefore unlikely to be a practical solution

Melena, on the other hand, is black, tarry stool from upper GI bleeding

--- 7 Contraindications / Cautions Sick sinus syndrome Bradycardia Peptic ulcer disease Asthma/COPD Concomitant anticholinergic drugs (reduce effect) --- 8 Drug Interactions Anticholinergics Oppose action CYP3A4 inhibitors (e.g., ketoconazole) levels CYP inducers (e.g., rifampicin) levels Beta-blockers risk of bradycardia --- 9 Comparison With Other Drugs Drug Selectivity Half-life Notes Donepezil CNS selective Long Once daily Rivastigmine Less selective Shorter Patch available Galantamine Moderate Moderate Also enhances nicotinic receptors --- Clinical Pearls Best tolerated among cholinesterase inhibitors No titration beyond recommended schedule Improvement seen in 46 weeks Stop if no clinical benefit To view or add a comment, sign in Overview of the common classes of antihypertensive drugs, their mechanisms, examples 1