About lidocaine hydrochlo ride
Local anesthetic; antiarrhythmic
Used for
- Numbing tissue for local or regional anesthesia
- Treating certain serious ventricular heart rhythm problems
Usual adult dose
For local anesthesia, dose varies by procedure and patient; clinicians use the lowest effective dose. For ventricular arrhythmias, dosing is weight-based under monitoring.
Usual dose in children
For local anesthesia, dose is weight-based and must not exceed recommended limits. For serious arrhythmias, specialist-directed weight-based dosing.
Common side effects
- Numbness, dizziness, or drowsiness
- Ringing in the ears or blurred vision
- Low blood pressure or slow heartbeat
- Seizures or breathing problems with overdose
Important warnings
- Injection must be given by trained healthcare professionals.
- Excessive doses or accidental injection into a blood vessel can cause severe toxicity.
- Use caution with liver disease, heart block, or severe heart failure.
- Resuscitation equipment should be available during administration.
Pregnancy
Use when clinically needed; dosing and monitoring should be managed by a healthcare professional.
Breastfeeding
Small amounts are expected to reach breast milk; use is generally considered compatible when clinically needed.
Interactions
- Other local anesthetics can increase toxicity.
- Medicines affecting heart rhythm may increase cardiac risks.
- Cimetidine and some beta blockers may increase lidocaine levels.
- Some antiarrhythmics may add to heart effects.
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 It may be incomplete or out of date.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.