Levonorgestrel and Ulipristal interaction

Levonorgestrel and Ulipristal: the Ulipristal prescribing label describes an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.

What the FDA labels say

From the Ulipristal (Ella) label · effective 2026-07-20

Moderate

Advise women to follow the instructions on the initiation or resumption of hormonal contraceptives after ella intake [see Dosage and Administration(2.2) ].

Warnings and precautionsby drug classView label on DailyMed
Moderate

If a woman used ella due to a known or suspected failure of her hormonal contraception refer to the hormonal contraceptive’s prescribing information for instructions on what to do [see Dosage and Administration (2.2) , Warnings and Precautions (5.5) and Clinical Pharmacology (12.2) ] .

Drug interactionsby drug classView label on DailyMed
Minor

Progestin-containing contraceptives may impair the ability of ella to delay ovulation.

Warnings and precautionsby drug classView label on DailyMed
Minor

• Initiation of progestin-containing contraceptives may impair the ability of ella to delay ovulation.

Drug interactionsby drug classView label on DailyMed
Minor

John's Wort • topiramate Hormonal contraceptives Progestin-containing contraceptives may impair the ability of ella to delay ovulation.

Drug interactionsby drug classView label on DailyMed

Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.