About verapamil hcl
Calcium channel blocker
Used for
- High blood pressure
- Angina (chest pain)
- Certain abnormal heart rhythms
Usual adult dose
Usually 180–240 mg once daily; dosing depends on condition and response.
Common side effects
- Constipation
- Dizziness or headache
- Slow heartbeat
- Low blood pressure
Important warnings
- May worsen heart failure or cause dangerously slow heartbeat.
- Do not crush or chew prolonged-release tablets.
- Can cause dizziness; use caution with driving.
- Do not stop suddenly without medical guidance.
Pregnancy
Use only when needed; discuss risks and benefits with a healthcare professional.
Breastfeeding
Verapamil enters breast milk in small amounts; infant effects are unlikely but monitor for unusual sleepiness or poor feeding.
Interactions
- Beta blockers or digoxin can excessively slow heart rate.
- Grapefruit may increase verapamil levels.
- Some statins and antibiotics can interact.
- Verapamil can increase levels of several other medicines.
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 It may be incomplete or out of date.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.