Prescription requiredAnti-allergic (Antihistamine + Leukotriene receptor antagonist)

Telekast F Tab 15S — Side Effects & Warnings

Known side effects of Telekast F Tab 15S include Headache, dizziness, nausea, stomach pain, diarrhoea, dry mouth, fatigue, drowsiness (rare), rash. Not everyone experiences these side effects.

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

Common Side Effects

Headache
dizziness
nausea
stomach pain
diarrhoea
dry mouth
fatigue
drowsiness (rare)
rash

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

Important Warnings

Not for relief of acute asthma attack. Use with caution in liver disease. Montelukast has been associated with neuropsychiatric effects (sleep disturbance, agitation, anxiety, depression, suicidal thoughts); stop and seek medical help if such symptoms occur. Use caution while driving if dizziness occurs. Inform doctor about all medicines and allergies.

Drug Interactions

Telekast F Tab 15S may interact with the following:

Antacids containing aluminium/magnesium may reduce fexofenadine absorption (separate by ~2 hours)
erythromycin
ketoconazole
rifampicin
gemfibrozil
other antihistamines/alcohol (may increase drowsiness in some)
NSAIDs/aspirin sensitivity in asthma (clinical caution)

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 dry place, protected from moisture and light. Keep out of reach of children.

Telekast F Tab 15S — Safety Summary

Composition: Montelukast 10 mg + Fexofenadine 120 mg (per tablet)
Prescription: Required (Rx)
Pregnancy: Consult doctor
Alcohol: Use with caution
Habit forming: No

Telekast F Tab 15S — 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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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.