Prescription required

Dilantin Suspension — Side Effects & Warnings

Known side effects of Dilantin Suspension include Nystagmus (involuntary eye movement) Double vision Sleepiness Anemia (low number of red blood cells) Peripheral neuropathy (tingling and numbness of feet and hand) Gingival hyperplasia Increased hair .... Not everyone experiences these side effects.

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

Common Side Effects

Nystagmus (involuntary eye movement) Double vision Sleepiness Anemia (low number of red blood cells) Peripheral neuropathy (tingling and numbness of feet and hand) Gingival hyperplasia Increased hair growth Osteoporosis

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

Pregnancy Safety

Dilantin 100 Capsule is unsafe to use during pregnancy.<br>There is positive evidence of human fetal risk, but the benefits from use in pregnant women may be acceptable despite the risk, for example in life-threatening situations. Please consult your doctor.

Alcohol Interaction

Dilantin 100 Capsule may cause excessive drowsiness and calmness with alcohol.

Dilantin Suspension — Safety Summary

Composition: Phenytoin (100mg)
Prescription: Required (Rx)
Pregnancy: Dilantin 100 Capsule is unsafe to use during pregnancy.<br>There is positive evidence of human fetal risk, but the benefits from use in pregnant women may be acceptable despite the risk, for example in life-threatening situations. Please consult your doctor.
Alcohol: Dilantin 100 Capsule may cause excessive drowsiness and calmness with alcohol.

Dilantin Suspension — 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.

Get help from a doctor

Consult a doctor

Discuss side effects with a qualified doctor online.

View all medicines

Full product details for Dilantin Suspension.

Lab tests

Book tests to monitor your health while on medication.

Sick leave certificate

Unwell and need rest? A doctor can issue a leave certificate online, from ₹499.

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.

Dilantin Suspension — Side Effects & Warnings

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