On this page · 9 sections

Kybella

Generic name: deoxycholic acid

Last updated October 1, 2026 0 views Reviewed by Philip Thornton, DipPharm
Share

What is Kybella?

Kybella is a manmade form of a substance your body makes that helps to absorb fats. Deoxycholic acid works by destroying fat cells where it is injected into the body.

Kybella is a prescription injection used to improve the appearance and profile of moderate to severe fat below the chin (submental fat), also called “double chin.” in adults.

The use of Kybella for the treatment of fat outside of the submental area is not recommended, and Kybella has not been tested for safe use on other areas of the body.

It is not known if Kybella is safe and effective in children under 18 years of age.

How is Kybella given?

Kybella is injected under the skin directly into the area beneath your chin. A healthcare provider will give you this injection.

You may be treated with a topical numbing medicine or an ice pack to ease pain and make you comfortable during the injections.

Kybella injection must be given in a series of up to 6 treatment sessions in order to be effective. You may receive up to 50 injections at each session.

Each treatment session should be spaced at least 1 month apart. Many people have had visible results after 2 to 4 sessions.

Your doctor will determine the right number of injections and how many sessions you need, depending on the results you want.

Warnings

Follow all directions on the Kybella label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

Before taking this medicine

You should not be treated with Kybella if you are allergic to deoxycholic acid, or if you have:

  • an infection in or around the area to be treated.

Tell your doctor if you have ever had:

  • surgery or other cosmetic treatments on your neck, chin, or face (or if you plan to have surgery on any of these areas);
  • trouble swallowing;
  • a thyroid disorder;
  • swollen lymph glands in your neck; or
  • a bleeding or blood-clotting disorder such as hemophilia.

It is not known whether Kybella will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.

It may not be safe to breast-feed while using this medicine. Ask your doctor about any risk.

Kybella is not approved for use by anyone younger than 18 years old.

Kybella side effects

Get emergency medical help if you have signs of an allergic reaction to Kybella: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

  • trouble swallowing;
  • weak muscles in your face;
  • a crooked smile;
  • open skin sores, drainage, tissue cell-death (necrosis), infection, or hair loss around treated areas;
  • pain, burning, irritation, or skin changes where the injection was given;
  • damage to an artery or vein if the medicine is inadvertently injected into it;
  • lumps or nodules where the injection was given, which may not go away and may require medical treatment; or
  • serious side effects if injected outside the chin area, such as blurred or reduced vision, or muscle or nerve damage.

Common Kybella side effects may include:

  • numbness or hardening of treated areas;
  • pain, swelling, redness, or bruising, of treated areas.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Dosing information

Usual Adult Dose for Submental Fat Reduction:

Area-adjusted dose of 2 mg/cm2 injected subcutaneously into fat tissue in the submental area.Comments:-A single treatment consists of up to a maximum of 50 injections, 0.2 mL each (up to a total of 10 mL), spaced 1-cm apart.-Up to 6 single treatments may be administered at intervals no less than 1 month apart.-The number of injections and the number of treatments should be tailored to the individual patient's submental fat distribution and treatment goals.Use: Improvement in the appearance of moderate to severe convexity or fullness associated with submental fat.

What happens if I miss a dose?

Call your doctor for instructions if you miss an appointment for your Kybella injection.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Follow your doctor's instructions about any restrictions on food, beverages, or activity.

What other drugs will affect Kybella?

Tell your doctor about all your other medicines, especially:

  • a blood thinner - warfarin, Coumadin, Jantoven; or
  • any other medicines to prevent blood clots.

This list is not complete. Other drugs may interact with deoxycholic acid, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
General medicine information Consumer-friendly language Source: Drugs.com

Content is provided for education and is not medical advice. See our medical disclaimer. Source page medically reviewed by Philip Thornton, DipPharm on October 1, 2026.