About atenolol + chlorthalidone
Beta blocker and thiazide-like diuretic combination
Used for
- Treats high blood pressure.
Usual adult dose
Usually one tablet once daily; dosing is adjusted to blood pressure and kidney function.
Common side effects
- Tiredness or dizziness
- Slow heartbeat
- Cold hands or feet
- Increased urination or electrolyte changes
Important warnings
- May cause low blood pressure, slow heartbeat, or dehydration.
- Can worsen asthma, certain heart conditions, or gout.
- May alter potassium, sodium, and blood sugar levels.
- Do not stop suddenly without medical guidance.
Pregnancy
Generally avoided, especially later in pregnancy; may affect fetal growth. Chlorthalidone can reduce milk production.
Breastfeeding
Atenolol enters breast milk and may accumulate in infants; chlorthalidone may reduce milk production.
Interactions
- Other blood-pressure medicines can increase low blood pressure.
- Verapamil or diltiazem can excessively slow heart rate.
- Lithium levels may rise with chlorthalidone.
- NSAIDs may reduce blood-pressure control and affect kidney function.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.