Kesimpta (ofatumumab) may not be safe to use while pregnant or breastfeeding. Certain factors, including the risks of not treating your condition during pregnancy, may determine whether you should use the drug during this time.
Kesimpta is used to treat multiple sclerosis (MS). Kesimpta may not be safe to use while pregnant. But it’s important to note that not treating this condition during pregnancy may also carry certain risks.
Because of this, you and your doctor should discuss the risks and benefits of using Kesimpta while pregnant versus not treating your condition during pregnancy.
Note: There is a pregnancy registry for people who use Kesimpta during pregnancy to help track effects. If you’re pregnant or planning to become pregnant while using Kesimpta, talk with your doctor and consider enrolling in the registry. You can also visit the registry website for more information.
It isn’t known whether Kesimpta is safe to use during breastfeeding. If you’re currently breastfeeding or planning to do so, it’s important to understand the effects that Kesimpta could have on you or the child who is breastfed.
If you’re sexually active and you or your partner can become pregnant, it’s important to consider how Kesimpta could affect your birth control options.
For females using Kesimpta
To help prevent pregnancy, females should use an effective form of birth control during Kesimpta treatment. And they should continue using birth control for at least 6 months after their last dose.
For males using Kesimpta
The manufacturer of Kesimpta hasn’t provided birth control recommendations for males who use the drug. If you’re a male using Kesimpta, talk with your doctor about your birth control options.
Note: The use of binary terms such as “male” and “female” or “men” and “women” in this article reflects the language of the sources we’ve used. Unless otherwise noted, it’s unclear whether the research we reference included participants with expansive gender identities.
Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.