⚠️ Important: This information is for education only. Never start, stop, or change any medication without consulting your doctor. This is NOT a prescription.
Over-the-counter (OTC)Antihistamine
Levocetirizine
Brand names
LevocetXyzal1-Al
Uses
Allergic rhinitis and chronic hives.
How it works
Selectively blocks H1 histamine receptors.
Common side effects
- Drowsiness
- Dry mouth
- Fatigue
Serious side effects
- Severe drowsiness (uncommon)
Who should not take it
Severe kidney disease; known allergy.
Drug interactions
Alcohol and sedatives increase drowsiness.
Storage
Store below 30°C.
Pregnancy category
B — No evidence of risk in humans
Sources: British National Formulary