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Sulphacetamide + Hydrocortisone + Phenyl Mercuric Nitrate

Written By Dr. Sakshi JainReviewed By Dr. Rajeev Sharma
Last updated 25 Nov 2025 | 09:37 AM (UTC)

Sulphacetamide + Hydrocortisone + Phenyl Mercuric Nitrate Uses

Sulphacetamide+Hydrocortisone+Phenyl Mercuric Nitrate is used in the treatment of bacterial eye infections.

How Sulphacetamide + Hydrocortisone + Phenyl Mercuric Nitrate works

Sulphacetamide is an antibiotic which stops bacteria from producing folic acid, a nutrient required for bacterial multiplication. This treats your infection. Hydrocortisone is a steroid medicine. It blocks the production of certain chemical messengers (prostaglandins) that make the eye red, swollen and itchy. Phenyl Mercuric Nitrate is a preservative.

Common side effects of Sulphacetamide + Hydrocortisone + Phenyl Mercuric Nitrate

Eye irritation, Eye discomfort
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Expert advice for Sulphacetamide + Hydrocortisone + Phenyl Mercuric Nitrate

  • Your doctor has prescribed Sulphacetamide + Hydrocortisone + Phenyl Mercuric Nitrate to treat bacterial infections of the eye.
  • Do not skip any doses and finish the full course of treatment even if you feel better.
  • Apply pressure on the corner of the eye (close to the nose) for about 1 minute immediately after instilling the drop.
  • If you wear soft contact lenses, remove them before putting in these eye drops and wait at least 15 minutes before putting your lenses back in.
  • Wait for at least 5-10 minutes before delivering the next medication in the same eye to avoid dilution.
  • Burning sensation may occur for 1-2 mins. Notify your doctor if it persists for longer. 

Frequently asked questions for Sulphacetamide + Hydrocortisone + Phenyl Mercuric Nitrate

No, do not stop applying Sulphacetamide+Hydrocortisone+Phenyl Mercuric Nitrate and complete the full course of treatment even if you feel better. Your symptoms may improve before the infection is completely cured.
Usually, Sulphacetamide+Hydrocortisone+Phenyl Mercuric Nitrate starts working soon after applying it. However, it may take some days to kill all the harmful bacteria and make you feel better.