What is Xaciato: Uses, Warnings & Interactions

Medically reviewed by Josephine BawabPharm.D.
Licensed Pharmacist
Updated May 14, 2025  •  Published Feb 8, 2023
Fact Checked

Xaciato (clindamycin phosphate) is a lincosamide antibacterial that is used to treat bacterial vaginosis. It is available as a vaginal gel, and it should not be applied to the eyes, mouth, or skin. A complete medical history should be taken before starting Xaciato because there is a risk of Clostridioides difficile-associated diarrhea occurring while taking it and for up to two months following treatment.

Xaciato overview

BRAND NAMES:

  • Xaciato

Generic Names:

  • Clindamycin phosphate

Uses:

Therapeutic Classes:

  • Lincosamide antibacterial

Forms:

  • Vaginal gel

How it’s taken:

  • Intravaginally

What is Xaciato used for?

Xaciato is used to treat bacterial vaginosis in those ages 12 years and older. Its active ingredient, clindamycin phosphate, inhibits the protein synthesis of bacteria, which stops it from producing.

Key takeaways

  • Take Xaciato exactly how it’s prescribed by your healthcare provider. It is only used for one dose, and it comes with one applicator.

  • Xaciato is a vaginal gel that should only be used vaginally. It should not be applied to the eyes, mouth, or skin.

  • Do not use vaginal products, including tampons, or have vaginal sex during treatment and for three days following treatment. Xaciato can weaken polyurethane condoms, so they should be avoided during treatment and for seven days following treatment.

  • Xaciato increases the risk of yeast infections. Talk to your healthcare provider or pharmacist about ways you can prevent a yeast infection, such as taking a probiotic.

  • Xaciato usually treats bacterial vaginosis within seven to 14 days. If your symptoms of bacterial vaginosis do not improve or go away within a few weeks, contact your healthcare provider.

What form(s) does Xaciato come in

  • Vaginal gel:

    • 2% clindamycin phosphate: one applicator delivers 5 grams of gel containing 100 mg of clindamycin phosphate

What are common Xaciato doses?

  • One applicatorful (5 grams of gel containing 100 mg of clindamycin phosphate) intravaginally once as a single dose

Common Xaciato prescriptions

  • Xaciato
    8gm of 2% tube

How to take Xaciato

  • Open the tube of Xaciato by unscrewing its cap and puncturing the tube’s seal using the pointed tip at the top of the cap.

  • Hold the applicator by its grip and screw the tip of the applicator onto the tube until it feels secure. Leave the plunger inside the applicator.

  • Squeeze the tube from the bottom. The gel will push the plunger up as the applicator fills. Continue to fill the applicator until you see a black line on the plunger pass the end of the applicator. Unscrew the applicator from the tube.

  • Lie on your back with your knees bent or in a comfortable position. Insert the applicator into the vagina as far as it will comfortably go. Slowly push the plunger until it stops. 

  • Remove the empty applicator from the vagina and place it in the original box that it came in, along with the tube, then throw the box away in the trash.

What to do if you miss a dose of Xaciato

  • Since Xaciato is taken as a one-time dose, a forgotten or missed dose can be taken as soon as remembered.

Xaciato contraindications

  • Xaciato should not be taken if hypersensitivity to clindamycin or lincomycin has previously occurred.

Xaciato warnings

  • There is a risk of Clostridioides difficile-associated diarrhea occurring when taking antibiotics. This can occur up to two months following Xaciato treatment. Those with inflammatory bowel disease are at an increased risk, so it is important to give a full medical history to your healthcare provider before starting Xaciato.

  • Xaciato increases the risk of getting a yeast infection. Talk to your healthcare provider or pharmacist about what you can do in order to prevent a yeast infection. Taking probiotics can help reduce this risk.

  • Vaginal sex should be avoided during Xaciato treatment and for three days following treatment. 

  • The safety and effectiveness is unknown in those younger than 12 years of age.

  • There are limited studies on whether or not Xaciato causes harm during pregnancy or breastfeeding. Since the risk of systemic effects of Xaciato is low, use of it while pregnant or breastfeeding is not likely to affect the infant. However, you should always consult a healthcare provider in order to compare the risks and benefits of taking any medication while pregnant or nursing.

Xaciato interactions

  • Neuromuscular blocking agents: Systemic clindamycin also has neuromuscular blocking properties. While the risk of vaginal clindamycin phosphate working systemically is low, caution should still be practiced in patients who take neuromuscular blocking agents.

  • Polyurethane condoms: Xaciato may weaken polyurethane condoms. Their use is not recommended during treatment and for the following seven days after treatment. Latex or polyisoprene condoms should be used instead.

  • Vaginal products: Vaginal products, such as tampons and douches, should be avoided during treatment and for three days following treatment because they may reduce the efficacy of Xaciato.

Xaciato side effects

Since Xaciato is a vaginal medication, there is a small chance of it getting into the body and working systemically. However, there are some side effects that may occur. Most of them are not concerning, but if Clostridioides difficile-associated diarrhea occurs, medical treatment is necessary.

Serious side effects:

  • Clostridioides difficile-associated diarrhea

Less serious side effects: 

  • Vulvovaginal candidiasis (yeast infection)

  • Vulvovaginal discomfort

Sources:

Medically reviewed by Josephine BawabPharm.D.
Licensed Pharmacist

Josephine Bawab, Pharm.D., graduated from Virginia Commonwealth University School of Pharmacy. She began working in community pharmacy in 2012 and has worked for multiple chain pharmacies since then. She is passionate about helping patients and precepting students. She currently works and resides in Virginia, where she is just a few minutes away from the beach.

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