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Composition for C PENT


food interaction for C PENT

alcohol interaction for C PENT

pregnancy interaction for C PENT

lactation interaction for C PENT

It can be taken with or without food, but it is better to take C pent drop at a fixed time.
Interaction with alcohol is unknown. Please consult your doctor.
C pent drop may be unsafe to use during pregnancy.
Either animal studies have shown adverse effect on fetus and there are no human studies or studies in human and animals are not available. It should be given only if potential benefits justifies risk to the fetus. Please consult your doctor.
Unknown. Human and animal studies are not available. Please consult your doctor.




C pent drop is used to enlarge the pupil of the eye and to paralyze the lens (preventing the eye from focusing) temporarily before an eye examination or eye surgery. It is also used to treat iritis (painful inflammation of iris of eye) and uveitis (inflammation of inner layer of middle eye).

How it works

C pent drop belongs to a group of medicines called mydriatic-anticholinergic drugs. It works by relaxing the circular muscles of iris thereby causing the pupil to dilate or widen.

Common side effects

Palpitations, Increased sensitivity to light, Eye redness, Allergic reaction, Increased production of tears, Eye discharge, Constipation, Dry mouth, Dry skin, Eye irritation, Flushing, Frequent urge to urinate, Inability to empty the urinary bladder, Altered heart rate, Increased intraocular pressure, Nausea, Vomiting


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Expert advice for C PENT

  • Consult your doctor if you have red and painful eyes, prone to increased eye pressure, men with enlarged prostate, have heart problems, ataxia (unsteadiness or coordination problems).
  • Cyclopentolate eye drops can cause blurred vision. Do not drive or operate heavy machinery until the effect is gone.
  • Remove soft lenses prior to instilling cyclopentolate eye drop and wait for at least 15 minutes prior to reinserting lenses.
  • Tell your doctor if you are or planning to become pregnant or are breastfeeding.

Frequently asked questions for C PENT


Q. What is cyclopentolate hydrochloride ophthalmic solution or eye drop?
Cyclopentolate hydrochloride ophthalmic solution or eye drop is a mydriatic-anticholinergic drug. It is used to enlarge the pupil of the eye (preventing the eye from focusing) and to paralyze the lens temporarily before an eye examination or surgery and.
Q. Why is cyclopentolate prescribed for microbial keratitis?
Cyclopentolate is prescribed for microbial keratitis to help in controlling pain and to prevent synechia (adherence of iris to cornea) formation.
Q. How long does cyclopentolate take to work?
Cyclopentolate takes about 30-60 min to work.

Q. How long does cyclopentolate last?
It  lasts for about 1 day.


Content on this page was last updated on 09 March, 2014, by Dr. Varun Gupta (MD Pharmacology)