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Tenormin

From , former About.com Guide

Updated May 19, 2004

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Brand Name:
Tenormin
Generic Name:
atenolol
FDA Drug Clasification :
antihypertensive, antianginal - Beta Blocker
Action:
Blocks action of Beta -adrenergic receptor within vascular smooth muscle; decreases heart rate; decreases O2 consumption in myocardium (heart muscle). Used to lower blood pressure in mild to moderate hypertension, prevent anginal pain (chest pain)
Adverse Effects:
  • low blood pressure, very low heart rate
  • insomnia, fatigue, dizziness, memory loss, depression, strange dreams
  • nausea, diarrhea, vomiting ischemic colitis
  • rash, fever, hair loss
  • agranulocytosis, thrombocytopenia, purpura
  • sore throat, dry eyes
  • impotence
  • low blood sugar when on insulin
  • bronchospasm
Precautions:
Do not use for patients with :
  • cardiogenic shock
  • 2nd or 3rd degree heart block
  • sinus bradycardia (heart rate under 60 beats per min.
  • cardiac failure
  • pregnancy
Use with caution in people who have :
  • undergoing major surgery
  • breastfeeding mothers
  • diabetes
  • renal disease
  • thyroid disease
  • CHF
  • COPD
  • asthma
  • well-compensated heart failure
Possible Interactions:
  • Increase hypertension (low blood pressure)and bradycardia; reserpine, hydralasine, methyldopa, prazosin, anticholinergics, digoxin, diltazem, verapamil, cardiac glycosides, antihypertensives
  • Increased hypoglycemic effect (low blond sugar; insulin, oral diabetes medications
  • increased effects of cough suppressants
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