Pharmacology Flashcards
Warfarin reversal
When?
How?
PO vitamin K (phytonidione) if > 10
Hemorrhage : IV vitamin K plus PCC
Warfarin adverse effects
Bleeding
Purple toe syndrome
Warfarin induced skin necrosis
Teratogenic
HIT type I
HIT type II
No clinical significance, transient decrease in platelets
Serious. Low plts while clotting
Why lovenox DVT prophylaxis over heparin??
Safer
Less likely to bleed
Less thrombocytopenia
When start statin for 10 yr calculated risk?
Greater than 7.5%
What other than statins can cause myalgias??
Vitamin D deficiency
Thyroid disease
What do you use if high high triglycerides?
Gemfibrozil –Careful use with statins!!!
Fenofibrates
Low K, low mag, and bradycardia is perfect set up for what?
Torsades
Amio problems
CYP concerns QT prolongation Cardiac toxicity Pulmonary toxicity - hypersensitivity or subacute cough w patchy interstitial infiltrates Recurrent sun exposure --> blue skin
Digoxin toxicity
Nausea
PVCs
Yellow green blurred vision
Loop diuretic works how?
Blocks Na/K exchange in ascending segment of loop of henle by inhibiting Na/k ATP-ase
Thiazides work how?
Interferes with Na/K exchange in early distal convoluted tubule by inhibiting Na/k ATP-ase
Side effects of diuretics?
Low K
Orthostatic hypotension
How does spironolactone work?
Anti-aldosterone drug, not so much a diuretic actually
Side effects of spironolactone ?
Hyperkalemia
Painful gynocomastia
adverse effect of ACE-I
Cough
Hyperkalemia
Angioedema - bad
Drugs for BPH
Alpha adrenergic blockers
Prazosin, terazosin, doxazosin
Cause postural hypotension
Non beta1 selective beta blocker
Propranolol
Metoprolol
Atenolol
Beta blocker that also has alpha1 blocking activity
Carvedilol
What drugs cause gingival hyperplasia??
Calcium channel blockers
Phenytoin
Amlodipine is what class?
Dihydropuridines
Dihydropuridines have what MOA?
Vasodilation