About nadolol
Nonselective beta blocker
Used for
- High blood pressure
- Angina (chest pain)
- Certain abnormal heart rhythms
Usual adult dose
Usually 40 mg once daily initially; dose is adjusted gradually according to response and kidney function.
Usual dose in children
Not routinely used in children; specialist dosing depends on age, weight, and condition.
Common side effects
- Slow heart rate
- Tiredness or dizziness
- Cold hands or feet
- Shortness of breath
Important warnings
- Do not stop suddenly; withdrawal can worsen chest pain or trigger heart problems.
- May worsen asthma, slow heart rate, or aggravate some heart conditions.
- Dose adjustment may be needed with reduced kidney function.
- Can mask warning signs of low blood sugar.
Pregnancy
Use only when clearly needed; it may affect fetal growth and cause a slow heartbeat or low blood sugar in the newborn.
Breastfeeding
Nadolol enters breast milk and may accumulate in infants; a clinician should assess risks and alternatives.
Interactions
- Other medicines that slow heart rate, such as verapamil or diltiazem
- Insulin and other diabetes medicines
- Clonidine
- Medicines that lower blood pressure
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 It may be incomplete or out of date.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.