Verapamil (Calan)

Cardiology (Non-DHP CCB)

Dosing & Administration

Adult Dose

IV: 2.5-5 mg over 2 mins. PO: 120-360 mg daily.

Pediatric Dose

0.1-0.3 mg/kg IV.

Renal Adjustment

Use caution.

Hepatic Adjustment

Reduce dose by 70% in severe cirrhosis.

Safety & Special Populations

Pregnancy Category

C

Lactation Safety

Compatible.

Contraindications & Adverse Effects

Contraindications

  • HFrEF
  • Heart block
  • Wolff-Parkinson-White syndrome with AFib

Common Adverse Effects

  • Constipation (very common)
  • Bradycardia
  • Heart block