Bacitracin Ointment: Uses, Dosage, and Side Effects Explained

Summary of Key Points

Bacitracin is an antibiotic commonly used to treat bacterial skin infections such as impetigo and infected wounds. It works by preventing bacterial growth. Bacitracin is available in topical forms and is generally safe when used as directed. However, it may cause side effects, so it’s important to consult a healthcare provider before use, especially if you have allergies or other medical conditions.

Names of Medication

US Brand Name: Bacitracin

The generic name refers to the active ingredient in the medication, which is listed in parentheses. In this case, Bacitracin serves as both the brand and generic name.

Pharmacologic Category

Topical Antibiotic

Polypeptide Antibiotic

Bacitracin Dosing Guidelines

Bacitracin is used to treat a variety of bacterial infections. Below are the recommended doses for adults. Always consult your doctor before adjusting your dose or starting a new treatment. If you need to speak with a healthcare provider, you can schedule a telemedicine appointment with us today.

1. Impetigo: Apply a small amount of Bacitracin ointment to the affected area 2 to 3 times daily for 7 to 10 days.
2. Folliculitis: Apply a thin layer to the affected area 2 to 3 times daily for 5 to 7 days.
3. Cellulitis: Bacitracin is typically not the first-line treatment for cellulitis, but in some cases, it may be used topically. Apply 2 to 3 times daily for 7 to 14 days.
4. Infected Wounds: Apply a small amount to the wound 2 to 3 times daily until healed or as directed by a healthcare provider.
5. Conjunctivitis (Eye Infections): Bacitracin ophthalmic ointment is applied to the inside of the lower eyelid 1 to 3 times daily for 5 to 7 days.
6. Skin Infections: Apply a thin layer to the affected area 2 to 3 times daily for 7 to 10 days.
7. Osteomyelitis (Bone Infection): Bacitracin is not typically used for osteomyelitis, but it may be part of a treatment plan under a doctor’s supervision. Consult your healthcare provider for dosing.
8. Pneumonia: Bacitracin is not commonly used for pneumonia. Consult your healthcare provider for appropriate treatment options.
9. Endocarditis (Heart Infection): Bacitracin is not typically used for endocarditis. Consult your healthcare provider for appropriate treatment options.
10. Urinary Tract Infections (UTIs): Bacitracin is not typically used for UTIs. Consult your healthcare provider for appropriate treatment options.

Dosage Forms and Strengths of Bacitracin

Topical Ointment: Bacitracin 500 units/gram

Ophthalmic Ointment: Bacitracin 500 units/gram

Administration Instructions for Bacitracin Ointment

For topical use, Bacitracin should be applied to clean, dry skin. Wash your hands before and after applying the ointment to avoid contamination. If using Bacitracin for an eye infection, apply the ointment inside the lower eyelid as directed by your healthcare provider. Do not use Bacitracin on large areas of skin or for deep wounds unless directed by a doctor. If symptoms persist or worsen, contact your healthcare provider immediately.

Adverse Reactions and Bacitracin Side Effects

Like all medications, Bacitracin can cause side effects. Most side effects are mild, but some can be more serious. If you experience any of the following, contact your healthcare provider:

Common Bacitracin Side Effects

1. Skin irritation: Redness, itching, or mild burning at the application site.

Less Common Bacitracin Side Effects

1. Allergic reactions: Rash, hives, or swelling, particularly if you have a known allergy to antibiotics.

Serious Side Effects (Rare)

1. Severe allergic reaction (anaphylaxis): Difficulty breathing, swelling of the face or throat, or severe dizziness. Seek emergency medical attention if you experience these symptoms.

Contraindications for Bacitracin Use

A contraindication is a specific situation where a drug should not be used because it may be harmful to the patient. If you have any of the following conditions or circumstances, Bacitracin may not be safe for you to use. Always consult with your healthcare provider before starting any new medication.

1. Allergy to Bacitracin: If you have a known allergy to Bacitracin or any of its components, you should not use this medication. Allergic reactions can range from mild skin irritation to more severe symptoms, such as difficulty breathing or swelling.
2. Severe Kidney Disease: Bacitracin is processed by your kidneys. If you have severe kidney disease, using Bacitracin could lead to further kidney damage or toxicity, especially if used in large amounts or for extended periods.
3. Extensive Open Wounds or Burns: Bacitracin is generally safe for small cuts or scrapes, but using it on large areas of damaged skin, such as extensive burns or open wounds, can increase the risk of systemic absorption, which may lead to toxicity.

Drug Interactions with Bacitracin

Drug interactions occur when one medication affects how another medication works, which can lead to increased side effects or reduced effectiveness. Bacitracin has relatively few drug interactions, but it’s important to be aware of the following:

1. Nephrotoxic Medications: Medications that can harm the kidneys, such as aminoglycoside antibiotics (e.g., Gentamicin), should be used with caution when taking Bacitracin, as both can increase the risk of kidney damage.
2. Polymyxin B: When used together with Bacitracin, this combination can increase the risk of kidney damage, especially in patients with pre-existing kidney conditions.
3. Colistin (Coly-Mycin M): Like Polymyxin B, Colistin is another antibiotic that can increase the risk of kidney toxicity when used in combination with Bacitracin.

Bacitracin in Pregnancy

Is it safe to use Bacitracin when pregnant?

Topical Bacitracin is generally considered safe during pregnancy when applied to small areas of the skin. Since the ointment is minimally absorbed into the bloodstream, the risk to the developing baby is very low. However, it’s always best to consult your healthcare provider before using any medication during pregnancy. If you have concerns, one of our telemedicine providers can help you determine if Bacitracin is the right choice for you.

Bacitracin while Breastfeeding

Is it safe to use Bacitracin while breastfeeding?

Yes, Bacitracin is typically safe to use while breastfeeding. Since Bacitracin is applied topically and not absorbed in significant amounts into the bloodstream, it poses little risk to a nursing infant. However, avoid applying Bacitracin directly to the breast area to prevent the baby from ingesting it. If you have concerns, consult your healthcare provider or reach out to one of our telemedicine providers for personalized advice.

Estimated Cost of Bacitracin Ointment

The cost of Bacitracin can vary depending on the pharmacy and location. However, using a GoodRx coupon, a 30-day supply of Bacitracin ointment (typically a 1-ounce tube) costs approximately $5 to $10 without insurance. Prices may vary, so it’s a good idea to check with your local pharmacy or use a discount service like GoodRx for the most accurate pricing.

Possible Alternatives to Bacitracin

If Bacitracin is not suitable for you, or if you are looking for alternative treatments, there are other options available depending on the condition being treated. Always discuss these alternatives with your healthcare provider before making any changes to your treatment plan. Our telemedicine providers are available to help you make the best decision for your health.

1. Impetigo: Alternatives include Mupirocin (Bactroban) or Retapamulin (Altabax) ointments. Good hygiene practices, such as regular handwashing and keeping the affected area clean, can also help prevent the spread of impetigo.
2. Folliculitis: Over-the-counter antiseptic washes, such as those containing benzoyl peroxide, can be effective. In more severe cases, oral antibiotics like Cephalexin (Keflex) may be prescribed.
3. Cellulitis: Oral antibiotics, such as Amoxicillin-Clavulanate (Augmentin) or Cephalexin (Keflex), are commonly used. Elevating the affected area and applying warm compresses can also help reduce symptoms.
4. Infected Wounds: Depending on the severity, oral or topical antibiotics like Mupirocin (Bactroban) or systemic antibiotics such as Clindamycin may be prescribed. Keeping the wound clean and covered is essential for healing.
5. Conjunctivitis: For bacterial conjunctivitis, antibiotic eye drops like Polymyxin B/Trimethoprim (Polytrim) or Erythromycin ointment may be used. Good hygiene, such as washing hands frequently and avoiding touching the eyes, can help prevent the spread of infection.
6. Skin Infections: Alternatives include topical antibiotics like Mupirocin or oral antibiotics such as Doxycycline for more severe infections. Proper wound care and hygiene are also important.
7. Osteomyelitis: This serious bone infection often requires intravenous (IV) antibiotics, such as Vancomycin or Ceftriaxone, and sometimes surgical intervention. Consult your healthcare provider for appropriate treatment.
8. Pneumonia: Depending on the cause, antibiotics like Azithromycin (Zithromax) or Amoxicillin may be prescribed. Rest, hydration, and breathing exercises can also aid recovery.
9. Endocarditis: This serious infection of the heart valves typically requires IV antibiotics, such as Vancomycin or Gentamicin, and sometimes surgery. Early diagnosis and treatment are critical.
10. Urinary Tract Infections (UTIs): Oral antibiotics like Nitrofurantoin (Macrobid) or Trimethoprim-Sulfamethoxazole (Bactrim) are commonly used. Drinking plenty of water and urinating frequently can help flush out bacteria.

Recent Updates on Bacitracin Research

Recent research on Bacitracin has focused on its use in combination with other antibiotics to combat antibiotic-resistant bacteria, such as Methicillin-resistant Staphylococcus aureus (MRSA). Studies suggest that Bacitracin, when combined with other topical antibiotics, may enhance effectiveness against resistant strains. However, more research is needed to fully understand its role in treating these infections.

Additionally, ongoing research explores Bacitracin’s potential in preventing infections in surgical wounds. Early results indicate that Bacitracin may help reduce the risk of post-surgical infections when used as part of a comprehensive wound care regimen. As always, consult your healthcare provider for the most up-to-date information on Bacitracin and its uses.

James Kingsley

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