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- See: Class II Agents

- Discussion:
- for HTN; B1 selective;
- adult dose:
- initially 50mg PO qd, may increase to 50 mg PO bid;
- if greater than 50mg qd required must divide the dose;
- IV: 5-10 mg dose last about 12 hrs (versus 24 hrs PO)
- w/ acute MI: 5 mg IV over 5 min followed by 5 mg PO 10 min later, then after 10 more min, try 50 mg PO q12 hr x 2;
- contraindicated with bradycardia, 2nd, 3rd degree heart block, CHF, cardiogenic shock, or hypotension;
- note that abrupt cesation of atenolol therapy in patients w/ CAD can result in exacerbation of angina;
- unlike propanolol or metoprolol, tenormin undergoes little hepatic degradation, it is excreted primarily in the kidneys



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