This medication is used to treat bacterial eye infections (such as conjunctivitis). It belongs to a class of drugs known as sulfa antibiotics. Sulfacetamide works by stopping the growth of bacteria.

This medication treats only bacterial eye infections. It will not work for other types of eye infections. Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness.

Use this medication in the affected eye(s) as directed by your doctor, usually every 3 to 4 hours.

To apply eye ointment, wash your hands first. To avoid contamination, do not touch the tip of the tube or let it touch your eye or any other surface. Apply to the eyes only. Do not swallow or inject.

Do not wear contact lenses while you are using this medicine. Sterilize contact lenses according to manufacturer's directions, and check with your doctor before you begin using them again.

To apply eye ointments, tilt your head back, look up, and gently pull down the lower eyelid to make a pouch. Place a half-inch (1.3 centimeters) strip of ointment into the pouch. Gently close the eye and roll the eyeball in all directions to spread the medication. Try not to blink and do not rub the eye. Repeat these steps for your other eye if so directed. Wipe the tip of the ointment tube with a clean tissue to remove extra medication before recapping it.

The dosage is based on your medical condition and response to treatment. Your doctor may direct you to use this medication more often at first, then use it less often as the infection improves. Follow your doctor's directions exactly. Your doctor may direct you to use sulfacetamide drops during the day and the ointment at bedtime.

If you are using another kind of eye medication (such as drops or ointments), wait at least 5 minutes before applying other medications. Use eye drops before eye ointments to allow the drops to enter the eye.

Wait several minutes for your vision to clear before driving or operating machinery.

Use this medication regularly in order to get the most benefit from it. To help you remember, use it at the same times each day. Continue to use this medication for the full time prescribed, even if symptoms disappear after a few days. Stopping the medication too early may result in a return of the infection.

Tell your doctor if your condition lasts or gets worse.

Eye stinging/burning/redness and temporary blurred vision may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Use of this medication for prolonged or repeated periods may result in other types of eye infections, including fungal infections. Stop using this medication and contact your doctor if you notice new or worsening eye symptoms (such as pain, swelling, thick discharge or pus).

Rarely, sulfacetamide products used in the eye may be absorbed and may cause serious side effects. Stop using this product and tell your doctor right away if you have any serious side effects, including:

• aching/swollen joints
• rash on nose and cheeks
• signs of infection (such as sore throat that doesn't go away, fever)
• signs of anemia (such as unusual tiredness/weakness, rapid breathing, fast heartbeat)
• unusual bleeding/bruising
• signs of liver problems (such as nausea that doesn't stop, dark urine, yellowing eyes/skin, stomach/abdominal pain, vomiting)
• mouth sores

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including:

• rash
• itching/swelling (especially of the face/tongue/throat)
• severe dizziness
• trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Before using sulfacetamide, tell your doctor or pharmacist if you are allergic to it; or to other sulfa antibiotics (such as sulfamethoxazole); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of:

• contact lens use

After you apply this drug, your vision may become temporarily blurred. Do not drive, use machinery, or do anything that needs clear vision until you can do it safely.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.

It is unknown if this drug passes into breast milk. Consult your doctor before breastfeeding.

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Some products that may interact with this drug are:

• silver preparations for the eye (such as silver nitrate)

This medicine may be harmful if swallowed. If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call 1-800-222-1222. Canada residents can call 1-844-764-7669.

Do not share this medication with others.

This medication has been prescribed for your current condition only. Do not use it later for another infection unless your doctor tells you to.

If you miss a dose, use it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Use your next dose at the regular time. Do not double the dose to catch up.

Different brands of this medication have different storage needs. Check the product package for instructions on how to store your brand, or ask your pharmacist. Keep all medications away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.