Atenolol
Brand: Tenormin
No boxed warning on the current FDA label.
- Caution
- Do not stop abruptly in coronary artery disease: taper to avoid angina, arrhythmia, or heart attack.
- Pregnancy
- Avoid in pregnancy: linked to fetal growth restriction.
Common side effects
- Slow heart rate
- Fatigue
- Dizziness
- Cold hands and feet
- Low blood pressure
Key interactions
- May mask low-blood-sugar signs in diabetes
- Additive effect with other blood-pressure drugs
- Caution with calcium channel blockers
- Clonidine: stop atenolol several days before withdrawing clonidine to avoid rebound hypertension
- Caution with digoxin (additive heart slowing)
Counseling points
- Do not stop suddenly; taper as directed
- Check pulse as instructed
- Rise slowly to reduce dizziness
- Take at the same time each day
- Report very slow heartbeat or fainting
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