1mg, best e pharmacy in India


MRP: Rs. 1566 for 1 vial(s) (1 injection each)
Unfortunately, we don't have any more items in stock
Report Error

Composition for POLY B (SMR)

Polymyxin B(500000 u)

food interaction for POLY B (SMR)

alcohol interaction for POLY B (SMR)

pregnancy interaction for POLY B (SMR)

lactation interaction for POLY B (SMR)

It can be taken with or without food, but it is better to take Poly b 500000u injection at a fixed time.
Interaction with alcohol is unknown. Please consult your doctor.
Poly b 500000u injection 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.
Poly b 500000u injection is probably safe to use during breastfeeding. Please consult your doctor.


Polymyxin B(500000 u)


Poly b 500000u injection is used in treating serious bacterial infections including respiratory infections and infections of the urinary tract. It is also given in combination with neomycin and dexamethasone or in combination with trimethoprim to treat bacterial infections in the eye.

How it works

Poly b 500000u injection belongs to a group of medication called polypeptide antibiotic. It works by killing the bacteria (gram negative) which causes the infection.

Common side effects

Nephrotoxicity, Neurotoxicity, Anaphylactic reaction, Shortness of breath, Exanthema, Fever, Increased white blood cell count (eosinophils), Tachycardia, Urticaria


No substitutes found

Top General Physicians

  • Dr. Sanjay Verma
    MBBS, MS
  • Dr. Varun Gogia
    MBBS, MD
  • Dr. Prem Vardhan
    MBBS, MS, Fellowship, Fellowship
  • Dr. Ajay Sharma
    MBBS, MS
  • Dr. Parul Sharma
    MBBS, MS, DNB, Fellowship

Expert advice for POLY B (SMR)

  • The injectable form of this drug is given only to hospitalized patients and under medical supervision.
  • You may get diarrhea after taking the injection. This usually settles as the course id completed. Consult your doctor if the diarrhea persists or worsens.
  • Consult your doctor if you get watery or bloody stools after completing the course.
  • Do not take polymyxin B if you are allergic to polymyxin B or any of the other ingredients of the drops or ointment.
  • Do baseline kidney function test before starting the medicine.
  • Consult your doctor before taking polymyxin B eye ointment/ drops: If you are taking herbal drugs or eye drops. If you are applying any non-steroidal anti-inflammatory drugs (NSAIDs) or steroids. If you wear contact lenses. If you have thinning of the eye tissue. If you have diabetes.
  • Women who are pregnant or breast feeding should consult the doctor on taking this medication.
  • Eye pressure should be regularly checked in patients taking the eye ointment /drops especially in children.
  • Do not drive or use machines immediately after using the drops/ointment  as it may cause blurred vision.
  • If you wear contact lenses, then remove them before applying the drops/ointment  and wear them only after 15 min.

Frequently asked questions for POLY B (SMR)

Polymyxin B

Q. Is polymyxin B an antibiotic/sulpha drug/penicillin?
Polymyxin B belongs to a class of medication called antibiotics. It is not a sulpha drug/penicillin.
Q. Is polymyxin B bacteriostatic or bacteriocidal?
Polymyxin B is bactericidal i.e. it kills bacteria.
Q. Does Polymyxin B expire?
Polymyxin B does expire and should not be used beyond the expiry date.
Q. Does polymyxin B treat pink eye or conjunctivitis?
Polymyxin B is not used to treat pink eye or conjunctivitis.

Q. Does it treat sties?
 It is not used for the treatment of sties in the eyes.
Q. Is polymyxin B safe for infants?
It is not considered to be safe for infants.


Content on this page was last updated on 13 January, 2016, by Dr. Varun Gupta (MD Pharmacology)