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Systemic Pharmacology, Drugs causes secondary hypertension, Classification…
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Ca channel Blocker
Adverse effects
Vasodilation
- Hypotension
- Bradycardia
- Headache
- Flushing
Ankle Oedema
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Dihydropidine
- Amlodipine
- Nifedipine
- Smooth muscle selective
- Used in HTN
- Nicardipine
- Nimodipine
- Cerebral vessel selective
- Used in Subarachnoid haemorrhage
Non dihydropidine
Cardio selective
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Digoxin
- Inhibits Na-K + ATPase enzymes
- Positive ionotropic
- Negative Chronotropic
- The first sign of Digoxin toxicity is sinus Bradycardia
Adverse effect
Cardiac
Extracardiac
- Anorexia
- Xanthopsia
- Gynaecomastia
Indicatiomn
- CCF
- Atrial fibrilation
- Paroxymaal sirtabentriculatt Tachucadia
- LVF
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Drug interaction
Toxicity
- Azithromycin
- Erythromycin
- Clarithromycin
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ARB
Common adverse effects
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- Angio oedema
- Hyperkalamia
Indication
- Diabetic nephropathy
- Chronic Kidney disease
Contraindication
- Bilateral renal artery stenosis
- Renal failure
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B blockers
Contraindication
- Heart block
- Bradycardia
- Acute Heart failure
- Hypotension
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- Diabetes
- Peripheral vascular disease
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Nitroglycerine
- ^ coronary circulation
- ! Preload and Afterload
- Interval atleast 8 hrs to prevent tolerance
- Weak !Negative ionotropic effects
- Organic nitrates are NO donors > vasodilation
Low dose
High dose
- Veno and Arterial dilation
Adverse effects
- Throbbing headache
- Tachycardia
- Tolerance
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Anti anginal drugs
Newer drugs
ROD TIN
- Ranolazine
- Oxyphendrin
- Dipyramide
- Trimetazidine
- Ivabradine
- Nicorandil
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