Prescription requiredAnti-allergic (Antihistamine)

De Allergi Ab Tab — Side Effects & Warnings

Known side effects of De Allergi Ab Tab include Drowsiness, dizziness, dry mouth, fatigue, headache, nausea. Not everyone experiences these side effects.

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

Common Side Effects

Drowsiness
dizziness
dry mouth
fatigue
headache
nausea

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

Important Warnings

May cause drowsiness—avoid driving or operating machinery if affected. Use with caution in glaucoma, enlarged prostate/urinary retention, liver or kidney disease, and in the elderly. Do not self-medicate for children without medical advice. Seek medical help if breathing difficulty, facial swelling or severe rash occurs.

Drug Interactions

De Allergi Ab Tab may interact with the following:

Alcohol and other CNS depressants (sedatives
sleeping pills
opioids) may increase drowsiness; anticholinergic medicines may worsen dry mouth/urinary retention; some antihistamines have interactions with strong CYP inhibitors—consult doctor/pharmacist with your full medication list.

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

Pregnancy Safety

Consult doctor

Alcohol Interaction

Avoid

Habit Forming

Storage

Store at room temperature (below 25°C), protected from light and moisture. Keep out of reach of children.

De Allergi Ab Tab — Safety Summary

Prescription: Required (Rx)
Pregnancy: Consult doctor
Alcohol: Avoid
Habit forming: No

De Allergi Ab 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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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.