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Sympatholytics
| Drug | Class | Uses |
|---|---|---|
| Phenoxybenzamine | Irreversible Non selective alpha blocker | HTN in pheochromocytoma Used pre-op to prevent hypertensive crisis |
| Phentolamine | Reversible non selective alpha blocker | Reverse cheese effect caused by patients using mao drugs , when invest cheese foods containing tyramine causing HTN MAO drugs inhibit breakdown of neurotransmitters and tyramine. Tyramine resemble dopamine causing HTN |
| Prazosin | selective alpha 1 blocker | Urinary symptoms of BPH PTSD HTN Scorpion sting S/E 1st dose orthostatic hypotension, dizziness, headache |
| Terazosin, dozazosin | selective alpha 1 blocker | HTN BPH urinary symptoms |
| Tamsulosin | selective alpha 1 blocker | BPH urinary symptoms S/E postural hypotension, retrograde ejaculation, flickering iris |
| Mirtazapine | selective alpha 2 blocker | Depression S/E sedation ,increased serum cholesterol and appetite |
| Atenolol, Metoprolol, Esmolol | Beta 1 selective blockers | HTN Metoprolol- systemic heart failure Post MI Stable angina Supraventricular arrhythmias CHF |
| Nadolol, Prapranolol | Non selective beta antagonists | Portal HTN Migraine Performance anxiety Essential tremors Thyroid storm Beta 1- decrease no Beta 2- decrease portal blood flow |
| Timolol | Non selective beta antagonists | Glaucoma Beta 1+2 blockade -->aqueous humor prod is blocked |
| Carvedilol | Beta 1,2,alpha1 antagonists | Systemic heart failure |
| Labetalol | Beta 1,2,alpha1 antagonists | Hypertensive emergency |
| Pindolol (beta1+2) non selective Acebutolok (beta 1 selective) | Intrinsic sympathomimetic activity | Beta agonist when sympathetic activity is low Beta blocker when sympathetic activity is high |