Hormonal Contraceptives/Cannabidiol; Tetrahydrocannabinol Interactions
This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.
Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
Cannabidiol (CBD) and tetrahydrocannabinol (THC) may speed up how quickly your body processes your hormonal contraceptive.
What might happen:
Hormonal contraceptives (e.g. "the pill", patches, implants, some IUDs, and the ring) may not be effective while you are taking CBD or THC, and you may become pregnant if you do not use other forms of birth control.
What you should do about this interaction:
Make sure your healthcare professionals (e.g. doctor or pharmacist) know that you are taking these medicines together. You should use a back-up form of birth control (e.g. condoms) or a non-hormonal form of birth control while taking CBD or THC. If you have questions about your birth control, discuss them with your doctor or pharmacist.Emergency contraceptives may be less effective also. You may need a larger dose than normal. Discuss the dose and the need to confirm that you do not become pregnant with a pregnancy test with your healthcare professional.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.