Description and Brand Names
Drug information provided by: Merative, Micromedex®
US Brand Name
- Mycostatin
Canadian Brand Name
- Mycostatin Vaginal Cream
- Nadostine
- Nilstat Vaginal Cream
- Nilstat Vaginal Tablet
- Nyaderm Vaginal Cream
Descriptions
Nystatin belongs to the group of medicines called antifungals. Vaginal nystatin is used to treat fungus infections of the vagina. Nystatin vaginal cream or tablets may also be used for other problems as determined by your doctor.
Nystatin is available only with your doctor's prescription.
Before Using
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
Studies on this medicine have been done only in adults, and there is no specific information comparing use of vaginal nystatin in children with use in other age groups.
Geriatric
Many medicines 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 or if they cause different side effects or problems in older people. There is no specific information comparing the use of vaginal nystatin in the elderly with use in other age groups.
Drug Interactions
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.
Other Interactions
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
Nystatin usually comes with patient directions. Read them carefully before using this medicine.
This medicine is usually inserted into the vagina with an applicator. However, if you are pregnant, check with your doctor before using the applicator to insert the vaginal tablet.
To help clear up your infection completely, keep using this medicine for the full time of treatment, even if your condition has improved. Also, keep using this medicine even if you begin to menstruate during the time of treatment. 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.
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For treating fungus (yeast) infections:
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For vaginal cream dosage form:
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Adults and teenagers—One 100,000-unit applicatorful inserted into the vagina one or two times a day for two weeks. Or, your doctor may want you to insert one 500,000-unit applicatorful into the vagina once a day.
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Children—Dose must be determined by your doctor.
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For vaginal tablet dosage form:
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Adults and teenagers—One 100,000-unit tablet inserted into the vagina one or two times a day for two weeks.
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Children—Dose must be determined by your doctor.
Missed Dose
If you miss a dose of this medicine, take 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. Do not double doses.
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
To help cure the infection and to help prevent reinfection, good health habits are required.
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Wear cotton panties (or panties or pantyhose with cotton crotches) instead of synthetic (for example, nylon, rayon) underclothes.
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Wear freshly laundered underclothes.
If you have any questions about this, check with your health care professional.
If you have any questions about douching or intercourse during the time of treatment with nystatin, check with your doctor.
Since there may be some vaginal drainage while you are using this medicine, a sanitary napkin may be worn to protect your clothing.
Side Effects
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 as soon as possible if any of the following side effects occur:
Rare
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Vaginal burning or itching not present before use of this medicine
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.
Portions of this document last updated: Feb. 01, 2024
Original article: https://www.mayoclinic.org/zh-hans/drugs-supplements/nystatin-vaginal-route/proper-use/drg-20065120