OTC · No prescriptionOphthalmic diagnostic (Mydriatic)

4 Quin Pfs 0.5ML Solution — Side Effects & Warnings

Known side effects of 4 Quin Pfs 0.5ML Solution include Temporary stinging/burning, blurred vision, sensitivity to light, eye redness, watery eyes, increased intraocular pressure (rare). Not everyone experiences these side effects.

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

Common Side Effects

Temporary stinging/burning
blurred vision
sensitivity to light
eye redness
watery eyes
increased intraocular pressure (rare)

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

Important Warnings

For use under medical supervision only. Avoid driving/operating machinery until vision clears. Use with caution in patients with glaucoma or risk of angle-closure glaucoma; seek urgent care if severe eye pain, headache, nausea, or sudden vision changes occur. Use caution in children, elderly, and those with cardiovascular disease if systemic absorption occurs. If allergic reaction occurs, stop and consult doctor.

Drug Interactions

4 Quin Pfs 0.5ML Solution may interact with the following:

Other mydriatics/cycloplegics (additive effect)
anticholinergic medicines (additive side effects)
adrenergic agents/MAO inhibitors (may increase cardiovascular effects)

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

Pregnancy Safety

Consult doctor

Alcohol Interaction

No known interaction

Habit Forming

Storage

Store as per label; generally keep at room temperature (below 25°C), protected from light and moisture. Do not freeze. Keep container tightly closed and out of reach of children.

4 Quin Pfs 0.5ML Solution — Safety Summary

Prescription: Not required (OTC)
Pregnancy: Consult doctor
Alcohol: No known interaction
Habit forming: No

4 Quin Pfs 0.5ML Solution — 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.