Generic name: Fluorometholone.

Other brand names: Flarex, Fluor-Op, FML Forte, FML LiquifiIm, FML Ointment.

FML is an ophthalmic anti-inflammatory corticosteroid. It inhibits the growth of bacteria in the eyes by chemically interfering with their ability to survive. 

Quick Facts About FML


Used to treat inflammation of the eye and eyelid.

FML Dosage

Use exactly as prescribed. Doctor may suggest that you not wear contacts while using FML; may increase the chance of infection from contact lenses. Do not discontinue medication without doctor authorization. To avoid spreading infection, do not share this prescription. Do not continue using beyond what your doctor specifically prescribes; may risk eye damage. If you have recurring eye problems, do not use leftover prescription unless specifically advised by your doctor to do so.

  • Usual adult dose: ointment — apply 1/2 ribbon between lower eyelid and eyeball 1 to 3 times per day. In first 2 days of therapy, doctor may prescribe 1 dose every 4 hours. Liquifilm — place 1 drop between the lower eyelid and eyeball 2 to 4 times per day. In first 2 days of therapy, doctor may prescribe 1 dose every 4 hours.
  • Usual child dose: not generally prescribed for children under 2 years.
  • Missed dose: apply as soon as possible, unless almost time for next dose. In that case, do not apply missed dose; go back to regular schedule. Do not double doses.

FML Side Effects

Overdose symptoms:

FML does not usually cause severe problems. If accidentally swallowed, drink plenty of fluids to dilute medication. However, if you suspect an overdose, immediately seek medical attention.

More common side effects: cataract formation, corneal ulcers, dilation of the pupil, drooping eyelids, eye inflammation and infection including conjunctivitis, glaucoma, increased eye pressure, slow wound healing.

No known less common or rare FML side effects.


No specific FML drug interactions reported.

No known food/other substance interactions. 

Special Cautions

If pregnant or planning to become pregnant, inform your doctor immediately. May appear in breast milk; could affect a nursing infant.

No special precautions apply to seniors.

Not generally prescribed for children under 2 years.

  • Do not use if sensitive to or allergic to this or similar medications such as Decadron.
  • Not prescribed for certain viral, fungal, and bacterial eye infections.
  • Ongoing use may cause glaucoma, cataract formation, or development or worsening of eye infection.
  • FML and similar steroids may cause punctures when used with diseases that thin the cornea or the sclera.
  • Doctor should monitor internal eye pressure during FML therapy.
  • Use with caution if you have cataract surgery.
  • If condition worsens after 48 hours, stop taking medication and contact your doctor.

Note: provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or FML side effects, please contact your healthcare provider.