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UQVet3Pharm
| Question | Answer |
|---|---|
| Phenylephrine | alpha agonist urinary incontinence, mydriatic |
| Xylazine | alpha2 agonist tranquilzer |
| Ephidrine/pseudoephidrine | alpha and beta agonist nasal decongestant and urinary incontinence |
| Dobutamine | beta1 agonist inotrope and increases BP in anaesth |
| Isoprenaline | beta1 and beta2 agonist inotrope (SE: myocard necrosis) and bronchodilator |
| Salbutamol | beta2 agonist bronchodilator |
| Desipramine, cocaine | Indirect acting adrenergic agonist Block transporters so no NT reuptake |
| MAO and COMT inhibitors - indirect acting agonists | Inhibit enzymes that degrade catecholamines and adrenomimetics |
| Prazosin | alpha1 antagonist Tx: hypertension and CHF |
| Phenoxybenzamine | alpha1 and 2 antagonist Tx: hypertension |
| Phentolamine | alpha1 and 2 antagonist Tx: hypertension |
| Yohimbine | alpha2 antagonist Tx: antidote for alpha2 agonist tranquilizers |
| Labetalol | beta1 (and some alpha) antagonism Decrease BP |
| Atenolol | beta1 Decrease HR and BP |
| Propanolol | beta1 and 2 Tx: hypertension, dysrhytmias, hypertrophic cardiomyopathy and anxiety. Caution in airway dz dt beta2 antagonism |
| Pilocarpine | Muscarinic receptor agonist Pupillary constriction Better half life than Ach |
| Bethanecol | Muscarinic receptor (w little heart and vasc sm m effects) Micturition and GI peristalsis Not degraded by cholinesterases |
| Indirect acting cholinergic agonists MOA | Inhibit cholinesterases --> cholinomimetic effect. Reversible or irreversible binding |
| Physostigmine | Indirect acting cholinomimetic - reversible Gets into BBB Miosis and Tx atropine poisoning |
| Neostigmine | Indirect acting cholinomimetic - reversible Doesn't get into brain Tx: myasthenia gravis |
| Ecothiaphate | Indirect acting cholinomimetic OP - thus irreversible binding Tx: glaucoma |
| Cisapride | Indirect acting cholinomimetic MOA = incr ACh release Increases gut motility |
| OP poisoning Tx? | Atropine blocks ACh action at muscarinic receptors |
| Atropine | Parasympatholytic Tx: inflam eye conditions |
| Scopolamine | Parasympatholytic For bowel - antiemetic and stops gut spasms (Buscopan) |
| Glycopyrrolate | Parasympatholytic Pre-anaesthetic (Decr salivation so less likely to inhale) |
| Propantheline | Parasympatholytic For bladder/GIT spasms |