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Deriphyllin Retard 300 Tablet — Side Effects & Warnings

Known side effects of Deriphyllin Retard 300 Tablet include Nausea Vomiting Stomach upset Headache Restlessness. Not everyone experiences these side effects.

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

Common Side Effects

Nausea Vomiting Stomach upset Headache Restlessness

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

Pregnancy Safety

Deriphyllin Retard 300 Tablet PR may be unsafe to use during pregnancy.<br>Animal studies have shown adverse effects on the foetus, however, there are limited human studies. The benefits from use in pregnant women may be acceptable despite the risk. Please consult your doctor.

Alcohol Interaction

Deriphyllin Retard 300 Tablet PR may cause excessive drowsiness and calmness with alcohol.

Deriphyllin Retard 300 Tablet — Safety Summary

Composition: Theophylline (69mg) + Etofylline (231mg)
Prescription: Not required (OTC)
Pregnancy: Deriphyllin Retard 300 Tablet PR may be unsafe to use during pregnancy.<br>Animal studies have shown adverse effects on the foetus, however, there are limited human studies. The benefits from use in pregnant women may be acceptable despite the risk. Please consult your doctor.
Alcohol: Deriphyllin Retard 300 Tablet PR may cause excessive drowsiness and calmness with alcohol.

Deriphyllin Retard 300 Tablet — 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.