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Gentamicin (Topical)

Generic name: gentamicin [ jen-ta-MYE-sin ]
Brand name: Garamycin
Drug class: Topical antibiotics

Medically reviewed by Drugs.com. Last updated on Sep 22, 2023.

Uses for gentamicin

Gentamicin belongs to the family of medicines called antibiotics. Gentamicin topical preparations are used to treat infections of the skin.

Gentamicin is available only with your doctor's prescription.

Before using gentamicin

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

This medicine has been tested in children over 1 year of age and, in effective doses, has not been shown to cause different side effects or problems than it does in adults.

Geriatric

Many medicine have not been studied specifically in older people. Therefore, it may not be known whether they work exactly the same way they do in younger adults. Although there is no specific information comparing use of this medicine in the elderly with use in other age groups, this medicine is not expected to cause different side effects or problems in older people than it does in younger adults.

Breast Feeding

Studies in women suggest that this medication poses minimal risk to the infant when used during breastfeeding.

Interactions with Medicines

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.

Interactions with Food/Tobacco/Alcohol

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Proper use of gentamicin

Before applying this medicine, wash the affected area with soap and water, and dry thoroughly. Apply a small amount to the affected area and rub in gently.

After this medicine is applied, the treated area may be covered with a gauze dressing if desired.

To help clear up your infection completely, keep using this medicine for the full time of treatment, even though your symptoms may have disappeared. Do not miss any doses.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

Missed Dose

If you miss a dose of this medicine, apply it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Precautions while using gentamicin

If your skin problem does not improve within 1 week, or if it becomes worse, check with your doctor.

Side Effects of gentamicin

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Less common

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Commonly used brand name(s)

In the U.S.

Available Dosage Forms:

Therapeutic Class: Antibacterial

Chemical Class: Aminoglycoside

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.