HMG-CoA reductase inhibitor Warfarin Nitroglycerin Calcium channel blo

HMG-CoA reductase inhibitor Warfarin Nitroglycerin Calcium channel blocker Digoxin ARBS ACE inhibitor Isoproterenol Tetracycline Izoniazid Macrolides Metformin Glyburide Glipizide GLP-1 agonist SGLT2 Levothyroxine Triiodothyronine PTU Glucocorticoids Spirinolactone Loop diuretics Thiazide diuretics Carbonic anhydrase inhibitor Osmotic diuretics. For This drugs give me detailed pharmacology specially using katzung for these drugs

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Reading File

All 25 drug classes are covered above. Here is a summary of what was included for each:

What this reference covers for each drug:

Each entry includes, per Katzung's framework:

Mechanism of Action - molecular target and downstream effects
Pharmacokinetics - absorption, distribution, metabolism, elimination, half-life, notable PK features
Clinical Uses - approved and major off-label indications
Adverse Effects - ranked by clinical importance
Drug Interactions - where significant (warfarin, macrolides, statins especially)

Key Katzung-specific points highlighted:

Warfarin: S-enantiomer is 4x more potent (CYP2C9 substrate); VKORC1 mutation causes resistance; protein C/S depletion explains early hypercoagulability
Nitroglycerin: ALDH2 bioactivation; tolerance via sulfhydryl depletion; nitrate-free interval required
CCBs: State-dependent channel blockade; α1 subunit binding; dihydropyridines vs verapamil/diltiazem selectivity differences
Isoniazid: NAT2 acetylator status determines pharmacokinetics and toxicity profile
Metformin: AMPK activation via complex I inhibition - mechanism Katzung emphasizes
PTU: Dual mechanism (TPO inhibition + peripheral deiodinase inhibition) distinguishing it from methimazole
SGLT2 inhibitors: Major outcomes trials cited (EMPA-REG, DAPA-HF, DAPA-CKD)
Thiazides vs loop diuretics: Opposite effects on calcium excretion - a classic Katzung teaching point

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