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GTN
Question | Answer |
---|---|
Type | Nitrate smooth muscle relaxant and vasodilator |
Pres | White 600 mcg sublingual tablet |
Actions | 1. Arterial and venous vasodilatation 2. Dilatation of collateral coronary vessels |
Uses | 1. Relieve cardiac pain of ischaemic origin 2. Relieve pulmonary oedema |
Adv Effects | 1. Hypotension 2. Headache 3. Flushing of skin 4. Occasionally – bradycardia |
Contras | 1. SBP is < 90 2. HR < 50 3. if Viagra or Levitra have been taken within 24 4. last dose of(Cialis), do not administer within 4 to 5 days in the elderly and those with renal impairment; or 3 to 4 days others 5. Known hypersensitivity |
Dose | Chest Pain: 1 tablet sublingually (600 mcg) Repeat x 1 as necessary APO: 1 tablet sublingually Repeat x1 after 10 minutes if in severe resp distress If: 90 > SBP < 100, or no previous nitrates give 1/2 tablet Repeat 1/2 tablet x 1 as necessary |