Prescription requiredAnti-allergic (Anti-histamine + Leukotriene receptor antagonist)

Bluekast L Tab — Side Effects & Warnings

Known side effects of Bluekast L Tab include Sleepiness, dizziness, headache, dry mouth, fatigue, abdominal pain, nausea. Not everyone experiences these side effects.

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated June 2026

Common Side Effects

Sleepiness
dizziness
headache
dry mouth
fatigue
abdominal pain
nausea

This is not an exhaustive list. Consult your doctor if you notice any unusual symptoms.

Important Warnings

May cause drowsiness—avoid driving/alcohol if affected. Use with caution in liver disease. Seek medical help for mood/behavior changes (agitation, depression, suicidal thoughts) reported rarely with montelukast. Not for acute asthma attack; keep rescue inhaler if asthmatic. Children, elderly, and patients with kidney impairment may need dose adjustment (levocetirizine).

Drug Interactions

Bluekast L Tab may interact with the following:

Alcohol and other CNS depressants (increased drowsiness)
sedatives/sleep medicines
rifampicin (may reduce montelukast effect)
phenytoin/phenobarbital (may reduce montelukast levels)
theophylline (monitor)

Always tell your doctor about all medicines you are taking, including over-the-counter drugs and supplements.

Pregnancy Safety

Consult doctor

Alcohol Interaction

Use with caution

Habit Forming

Storage

Store below 25°C in a cool, dry place, protected from light and moisture. Keep out of reach of children.

Bluekast L Tab — Safety Summary

Composition: Montelukast 10 mg + Levocetirizine 5 mg (per tablet)
Prescription: Required (Rx)
Pregnancy: Consult doctor
Alcohol: Use with caution
Habit forming: No

Bluekast L Tab — Safety FAQs

What should I do if I experience side effects?

Mild side effects often resolve on their own. If side effects are severe or persistent, stop the medicine and consult your doctor immediately.

Are all listed side effects common?

No. Some side effects are common while others are rare. Not everyone experiences side effects. Consult your doctor if you are concerned.

Can I take this medicine with other drugs?

Some medicines interact with each other. Always inform your doctor about all medicines you are currently taking.

When should I seek emergency help?

Seek immediate medical attention if you experience severe allergic reactions (difficulty breathing, swelling of face/throat), chest pain, or any life-threatening symptoms.

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Discuss side effects with a qualified doctor online.

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Safety disclaimer

This information is for educational purposes only and is not a substitute for professional medical advice. If you experience severe side effects, seek medical attention immediately.