| Drug | Mechanism | Clinical Uses | Notes / Mnemonics |
|---|---|---|---|
| Bethanechol | Agonist at M3 | Urinary retention, ileus | "Bethany, call me" |
| Carbachol | Agonist at M1-M3, Nicotinic | Glaucoma | "Carbon copy" |
| Methacholine | Agonist at M3 (Airway) | Asthma challenge | |
| Pilocarpine | Agonist at M3 | Glaucoma, Sjogren's | "Cry, drool, sweat" |
| Donepezil, Rivastigmine, Galantamine | Anti-AChE (Increases ACh at M1 CNS) | Alzheimer's | Crosses BBB |
| Edrophonium | Anti-AChE (Increases ACh at NMJ) | MG Diagnosis | Short acting |
| Neostigmine | Anti-AChE (Increases ACh at NMJ) | MG, Ileus, Reversal | No CNS entry |
| Physostigmine | Anti-AChE (Increases ACh in CNS/PNS) | Atropine overdose | Crosses BBB |
| Pyridostigmine | Anti-AChE (Increases ACh at NMJ) | MG Maintenance | Long acting |
| Drug | Mechanism | Clinical Uses | Notes / Mnemonics |
|---|---|---|---|
| Atropine, Homatropine, Tropicamide | Antagonist at M1, M2, M3 | Mydriasis, Cycloplegia | "Hot as a hare" |
| Benztropine, Trihexyphenidyl | Antagonist at M1 (CNS) | Parkinson's | "Park my Benz" |
| Glycopyrrolate | Antagonist at M3 (Glands) | Drooling, Secretions | No CNS entry |
| Hyoscyamine, Dicyclomine | Antagonist at M3 (GI) | IBS | Antispasmodic |
| Ipratropium, Tiotropium | Antagonist at M3 (Airway) | COPD, Asthma | "I pray I can breathe" |
| Oxybutynin, Solifenacin, Tolterodine | Antagonist at M3 (Bladder) | Overactive Bladder | |
| Scopolamine | Antagonist at M1 (Vestibular) | Motion Sickness | Patch |
| Drug | Mechanism | Clinical Uses | Notes / Mnemonics |
|---|---|---|---|
| Albuterol, Salmeterol | Agonist at Beta-2 | Asthma, COPD | Salmeterol = Long acting |
| Dobutamine | Agonist at Beta-1 > Beta-2 | Heart Failure | Inotropic |
| Dopamine | D1 (low), B1 (med), A1 (high) | Shock, HF | Dose dependent |
| Epinephrine | Agonist at Beta > Alpha | Anaphylaxis | |
| Fenoldopam | Agonist at D1 | HTN Emergency | Renal vasodilation |
| Isoproterenol | Agonist at Beta-1 = Beta-2 | Arrhythmia eval | Drops DBP |
| Midodrine | Agonist at Alpha-1 | Postural Hypotension | Oral active |
| Mirabegron | Agonist at Beta-3 | Overactive Bladder | |
| Norepinephrine | Agonist at Alpha-1 > Beta-1 | Septic Shock | Reflex bradycardia |
| Phenylephrine | Agonist at Alpha-1 | Decongestant, Mydriatic | Pure pressor |
| Amphetamine | Displaces NE/DA | ADHD | Indirect |
| Cocaine | Inhibits NET/DAT | Anesthesia | Indirect |
| Ephedrine | Releases NE | Decongestant | Mixed |
| Drug | Mechanism | Clinical Uses | Notes / Mnemonics |
|---|---|---|---|
| Prazosin, Terazosin, Doxazosin | Antagonist at Alpha-1 | BPH, HTN, PTSD | 1st dose hypotension |
| Tamsulosin | Antagonist at Alpha-1A | BPH (Uroselective) | |
| Phenoxybenzamine | Irreversible Alpha block | Pheochromocytoma | Covalent bond |
| Phentolamine | Reversible Alpha block | Tyramine crisis | Competitive |
| Clonidine, Guanfacine | Agonist at Alpha-2 (Central) | HTN, ADHD | Rebound HTN |
| Alpha-Methyldopa | Agonist at Alpha-2 (Central) | HTN in pregnancy | Coombs + |
| Propranolol, Nadolol, Timolol | Antagonist at Beta-1, Beta-2 | HTN, Glaucoma (Timolol) | Non-selective |
| Atenolol, Metoprolol, Esmolol, Bisoprolol | Antagonist at Beta-1 | HTN, HF, CAD | Cardioselective |
| Carvedilol, Labetalol | Antagonist at B1, B2, A1 | HF, HTN Pregnancy | Vasodilating |
| Acebutolol, Pindolol | Partial Agonist (ISA) | HTN | Avoid in Angina |