DILTIAZEM hydrochloride, 25mg, powder, vial
Valid Article
DILTIAZEM hydrochloride
- Not in the WHO list of Essential Medicines 2025
Therapeutic Action
Calcium-channel blocker, antiarrhythmic
Indications
- Rapid conversion to a normal sinus rhythm of paroxysmal supraventricular tachycardias (SVT)
- Temporary control of rapid ventricular rate in atrial fibrillation or flutter
Verapamil is preferred for the same indications
Instructions for use
Reconstitute the powder vial with water for injection.
Must be given as direct IV injection or IV infusion in 5% dextrose or 0.9% NaCl.
Posology (Adults):
- Initial dose: 0.25 mg/kg (average adult dose:15-20 mg) by direct IV over 2 minutes
- If response inadequate after 15 minutes: 0.35 mg/kg (average adult dose: 20-25 mg) by direct IV over 2 minutes
- Maintenance: continuous IV infusion 5 mg/hr, increase as needed up to 15 mg/hr for up to 24 hours
Administer only in hospital settings with monitoring and cardiorespiratory resuscitation equipment available for immediate use.
During administration, continuous ECG monitoring is necessary due to the risk of fatal arrhythmias.
Verapamil or adenosine may be used as alternative in case of supply constraints.
Contact your OC anaesthetist advisor for more details.
Precautions for Use
Do not administer in children.
Contraindicated in patients with:
- Cardiogenic shock
- Decompensated heart failure or severe left ventricular dysfunction
- Symptomatic hypotension (SBP < 90mmHg)
- Sick sinus syndrome (unless permanent pacemaker in place)
- Wide-complex tachycardia
- 2nd/3rd degree AV block (unless permanent pacemaker in place)
- Atrial flutter/fibrillation combined with Wolff-Parkinson-White syndrome
Do not combine with betablocker due to risk of severe bradycardia or heart block.
Storage
- Below 25ºC
- After opening/reconstitution/dilution, use the product immediately.