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Cardio Drugs Etc
Other Drugs that Didn't Make it
Question | Answer |
---|---|
Centrally Acting Sympatholytics Main Use | HT |
CAS Mech | Activate alpha2's in brain stem |
CAS Response | decrease SNS, CO and TPR |
CAS Use | Resistant HT |
CAS SE | Lots, SEDATION, DRY MOUTH, Bradycardia |
CAS Other | Sudden stopping can cause rebound hypertension (bad), use methyldopa in preggers w/HT |
Direct Arterial Vasodilators Main Use | Hydralazine, works in pretty much everyone, use comboHT |
DAV Mech | Hydral = ???Minoxidil = K channel agonist (opener) |
DAV Response | Decrease ateriolar contraction -> decrease TPR, increase SNS, RAS and renal Na retention |
DAV Use | Hydral in resistant HTMinoxidil = more potent but only in people w/severe refractory HT in renal fail, neither widely used clinically |
DAV SE | Headaches, dizzy, tachy, edema, hair growth (Minidoxil) |
DAV Other | both drugs in combo w/diuretic and b-blocker to suppress compensatory pressor mech (good to decrease BP but activate lots of other systems -> leads to physiologic tolerance |