Informational only — Not medical advice. Always consult a licensed healthcare provider.

Community data Updated 2 months ago

More from Pirocin

Other strengths and forms by Medicon Pharmaceuticals Ltd.

Indications & Uses

Trego ointment is used to treat impetigo, a skin infection caused by *Staphylococcus aureus* and *Streptococcus pyogenes*, when applied to the skin. It is also used to treat folliculitis and furunculosis.

Pharmacology

Mupirocin is a naturally occurring antibiotic. It is made by fermentation, using the organism Pseudomonas fluorescens. It works against a wide range of bacteria, which are responsible for most skin infections. These include Staphylococcus aureus, including methicillin-resistant strains (MRSA), and Streptococcus pyogenes. It also works against certain gram-negative bacteria such as Escherichia coli and Haemophilus influenzae.

Mupirocin stops bacteria from making proteins. It does this by binding, in a reversible and specific way, to a bacterial enzyme called isoleucyl transfer-RNA synthetase. Because it acts in this unusual way, mupirocin shows no cross-resistance in laboratory tests with other classes of antimicrobial agents.

At the levels reached with topical use, mupirocin kills bacteria. However, the minimum bactericidal concentration (MBC) against relevant pathogens is usually eight-fold to thirty-fold higher than the minimum inhibitory concentration (MIC).

Dosage Reference

Reference Information Only

Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.

Adults:

Apply a small amount of Mupirocin ointment to the affected area 3 times daily for up to 10 days.

Mupirocin ointment has been shown to be safe and effective in children and adolescents aged 2 months to 16 years. Its use in these age groups is supported by adequate and well-controlled studies of Mupirocin in impetigo in paediatric patients.

Side Effects

Reported side effects include a burning, stinging or painful sensation, and itching. Some patients may also experience rash, nausea, redness (erythema), dry skin, tenderness, swelling, contact dermatitis or increased discharge from the treated area.

Cautions & Contraindications

Warnings & Precautions

Trego ointment should not be used in or near the eyes or inside the nose. As with other antibacterial products, prolonged use may lead to overgrowth of non-susceptible organisms, including fungi. When applying Trego to the face, care should be taken to avoid contact with the eyes. It is not suitable for use with cannulae or at the site of central venous cannulation. If sensitization or severe local irritation occurs with Trego ointment, use should be stopped and an appropriate alternative therapy for the infection started. Trego ointment should not be mixed with other preparations, as this can dilute it, reducing its antibacterial activity and potentially affecting its stability.

Contraindications

Mupirocin should not be used by anyone who has previously had an allergic reaction to it or to any other ingredient in this preparation.

Pregnancy & Breastfeeding

Reproduction studies with Mupirocin ointment in animals have shown no evidence of harm to the developing baby. However, since there is no clinical experience with its use during pregnancy, it should be used only if the expected benefits are considered to outweigh any possible risks. Whether this medicine passes into human breast milk is not known. As many medicines do pass into breast milk, Mupirocin ointment should be used with caution by breastfeeding mothers.

⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

Overdose

We don't have much data on overdose with Mupirocin ointment. If an overdose happens, the patient should be treated with supportive care and monitored as needed.

⚠️ In an emergency call 999 or go to the nearest hospital emergency department.

Storage

Store Mupirocin below 25° C, away from light and moisture. Don't let it freeze. Keep it out of the reach of children.

Common questions about Pirocin 100 mg

What is Pirocin 100 mg Ointment?

Pirocin 100 mg Ointment is a medicine that contains Mupirocin. It is made by Medicon Pharmaceuticals Ltd. It belongs to the Topical Antibiotic preparations group of medicines.

What is Pirocin used for?

Trego ointment is used to treat impetigo, a skin infection caused by *Staphylococcus aureus* and *Streptococcus pyogenes*, when applied to the skin. It is also used to treat folliculitis and furunculosis.

What are the side effects of Pirocin?

Reported side effects include a burning, stinging or painful sensation, and itching. Some patients may also experience rash, nausea, redness (erythema), dry skin, tenderness, swelling, contact dermatitis or increased discharge from the treated area.

Can I take Pirocin during pregnancy or while breastfeeding?

Reproduction studies with Mupirocin ointment in animals have shown no evidence of harm to the developing baby. However, since there is no clinical experience with its use during pregnancy, it should be used only if the expected benefits are considered to outweigh any possible risks. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

What happens if I take too much Pirocin?

We don't have much data on overdose with Mupirocin ointment. If an overdose happens, the patient should be treated with supportive care and monitored as needed. In an emergency call 999 or go to the nearest hospital emergency department.

How should I store Pirocin?

Store Mupirocin below 25° C, away from light and moisture. Don't let it freeze.

Do I need a prescription for Pirocin?

Pirocin is a prescription (Rx) medicine. Take it as your doctor advises.

Last updated: 15 Aug 2026