PrescriptionGiant is a FREE prescription savings program that can save you up to 75% on your prescriptions with or without insurance!

Polytrim (Generic Polymyxin B and Trimethoprim Ophthalmic)

Actual product appearance may differ slightly.

Click the CARD below to print or take a screenshot on your mobile phone or tablet. There is no need to download another app!

If you would like to personalize your card enter your full name in the member name field below the card at this link and click the Update button.


Why is this medication prescribed?

Polytrim is a prescription medication that is used for the treatment of bacterial eye infections. It is a combination of two active ingredients: polymyxin B sulfate and trimethoprim. Polymyxin B sulfate is an antibiotic that works by disrupting the bacterial cell membrane, and trimethoprim inhibits bacterial folate synthesis, which is essential for bacterial growth.

Polytrim is typically prescribed for bacterial conjunctivitis, which is an inflammation of the conjunctiva (the thin membrane that covers the white part of the eye and the inner surface of the eyelids) caused by bacterial infections. Bacterial conjunctivitis can result in symptoms such as redness, itching, tearing, and discharge from the eyes.

How should this medicine be used?

Usage Instructions:

  • Dosage: The dosage may vary depending on the severity of the infection and the prescribing doctor’s instructions. Follow your healthcare provider’s recommendations.
  • Administration: Polytrim is an ophthalmic solution (eye drops) and should be applied directly to the affected eye(s).
  • Frequency: Typically, the usual dosing schedule is applying one to two drops into the affected eye(s) every 3 to 4 hours while awake. The frequency and duration may vary based on the severity of the infection.
  • Application: Wash your hands before applying the eye drops. Tilt your head back, pull down your lower eyelid to create a small pocket, and instill the prescribed number of drops into the eye. Close your eyes gently for a few moments to allow the medication to spread across the eye.
  • Avoid Contamination: Do not touch the tip of the dropper to any surface, including the eyes, to prevent contamination. Do not wear contact lenses while you have an active eye infection unless otherwise directed by your doctor.
  • Completing the Course: It’s essential to complete the full course of medication even if symptoms improve before the medication is finished, unless your healthcare provider instructs otherwise.

Always follow your doctor’s instructions and do not self-prescribe or stop the medication prematurely without consulting your healthcare provider. If you experience any adverse effects or if your symptoms worsen, contact your doctor promptly.

Other uses for this medicine

While the primary use of Polytrim is for bacterial conjunctivitis, sometimes healthcare providers may prescribe medications for off-label uses based on their clinical judgment. However, any such use should be discussed thoroughly with the prescribing healthcare professional.

What special precautions should I follow?

Special precautions to consider when using Polytrim:

  • Allergies: Inform your doctor of any allergies you may have, especially if you are allergic to any antibiotics or other substances. This is crucial to avoid potential allergic reactions.
  • Pregnancy and Breastfeeding: If you are pregnant or breastfeeding, discuss the potential risks and benefits of using Polytrim with your healthcare provider. The decision to use the medication during pregnancy or while breastfeeding should be made in consultation with your doctor.
  • Medical History: Provide your healthcare provider with a comprehensive medical history, including any pre-existing eye conditions, other medications you are taking, and any history of sensitivity to medications.
  • Contact Lenses: Avoid wearing contact lenses while using Polytrim, unless your doctor specifically advises otherwise. The preservatives in the eye drops can be absorbed by soft contact lenses.
  • Not for Systemic Infections: Polytrim is specifically formulated for ophthalmic use and should not be ingested or used for systemic infections. It is not designed to treat infections in other parts of the body.
  • Follow Instructions: Adhere strictly to your healthcare provider’s instructions regarding the dosage and duration of treatment. Do not stop using the medication prematurely, even if symptoms improve.
  • Avoid Contamination: Prevent contamination of the eye drops by not allowing the tip of the dropper to touch any surfaces, including the eyes. Keep the bottle tightly closed when not in use.
  • Monitoring: If you experience any adverse effects or if your symptoms worsen, contact your healthcare provider promptly.

It’s crucial to have open and honest communication with your healthcare provider, informing them of your complete medical history and any concerns you may have about the medication. This allows them to make informed decisions about your treatment plan and adjust it as needed.

What special dietary instructions should I follow?

There are no specific dietary restrictions associated with Polytrim. However, it’s always a good practice to take medications with a full glass of water unless otherwise directed by your healthcare provider.

What should I do if I forget a dose?

If you miss a dose, instill it as soon as you remember. However, if it is almost time for the next dose, skip the missed dose and continue with your regular schedule. Do not double up on doses to make up for a missed one.

What side effects can this medication cause?

Polytrim, a combination of polymyxin B sulfate and trimethoprim, may cause side effects in some individuals. Common side effects are generally mild and may include:

  • Eye Irritation: Mild burning, stinging, or irritation in the eyes.
  • Blurred Vision: Temporary blurred vision after application.
  • Redness: Temporary redness of the eyes.

These side effects are usually transient and may resolve on their own as your eyes adjust to the medication. However, if any of these effects persist or worsen, it’s important to inform your healthcare provider.

Serious side effects are rare, but if you experience any of the following, seek immediate medical attention:

  • Severe Allergic Reactions: Symptoms may include rash, itching, swelling, severe dizziness, or difficulty breathing.
  • New or Worsening Eye Symptoms: If your eye condition worsens or if you develop new symptoms, such as increased redness, swelling, or discharge.

It’s important to note that your healthcare provider has prescribed this medication because they have judged that the benefits outweigh the risk of side effects. Most people using Polytrim do not experience serious side effects.

If you have concerns about potential side effects or experience any unusual symptoms, contact your healthcare provider promptly. They can provide guidance based on your individual health profile and may adjust your treatment plan if necessary. Additionally, do not hesitate to seek emergency medical attention if you believe you are experiencing a severe allergic reaction or any other serious side effect.

What should I know about storage and disposal of this medication?

Storage and disposal of Polytrim:

  • Storage:
    • Store Polytrim eye drops at room temperature, away from excessive heat and moisture.
    • Keep the bottle tightly closed when not in use.
    • Do not freeze the medication.
  • Disposal:
    • Dispose of the medication as instructed by your healthcare provider or pharmacist.
    • Do not flush medications down the toilet unless specifically instructed to do so.
    • Properly discard any expired or unused medication.

In case of emergency/overdose

If you suspect an overdose or experience severe adverse effects, seek emergency medical attention or contact your local poison control center immediately. Symptoms of overdose may include increased irritation or other severe side effects. Do not attempt to self-treat an overdose without professional guidance.

What other information should I know?

  • Follow-up Appointments: Attend all follow-up appointments with your healthcare provider to monitor the progress of the infection and ensure the effectiveness of the treatment.
  • Complete the Course: Finish the entire course of Polytrim, even if your symptoms improve before the medication is finished. Stopping the medication prematurely may allow the infection to return.
  • Avoid Contamination: Avoid touching the tip of the dropper to any surfaces, including your eyes, to prevent contamination. This helps maintain the sterility of the eye drops.
  • Informing Healthcare Providers: Inform all your healthcare providers, including eye care specialists and pharmacists, about the use of Polytrim to ensure coordinated and comprehensive care.
  • Adverse Reactions: Be aware of potential adverse reactions or side effects, and contact your healthcare provider if you experience any unusual symptoms or if your condition worsens.
  • Allergic Reactions: Seek immediate medical attention if you experience signs of an allergic reaction, such as rash, itching, swelling, severe dizziness, or difficulty breathing.
  • Regular Eye Exams: Regular eye check-ups are important, especially if you have pre-existing eye conditions or experience persistent eye symptoms.

As with any medication, it’s crucial to follow your healthcare provider’s instructions, ask questions if you have uncertainties, and promptly report any adverse effects or concerns. Your healthcare provider can provide personalized guidance based on your medical history and condition.

Copyright © 2023 PrescriptionGiant.com