Atenolol/Tenormin


- 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



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Wednesday, December 14, 2011 3:22 pm