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Ella (ulipristal acetate) works by selectively blocking progesterone receptors to delay or inhibit ovulation. It is effective for up to 120 hours after unprotected sex, whereas Plan B (levonorgestrel) is most effective within 72 hours. Studies suggest Ella maintains its effectiveness more consistently throughout the 120-hour window and may be more effective than levonorgestrel-based options at higher body weights, though neither is intended as a regular contraceptive.

You should take Ella as soon as possible after unprotected intercourse or contraceptive failure. While it remains effective for up to 120 hours (5 days), its effectiveness is highest when taken sooner. Do not delay seeking a prescription while waiting to see if your regular contraceptive worked.

Yes. Because Ella interacts with progesterone receptors, it can reduce the effectiveness of hormonal contraceptives taken around the same time. Your physician will advise you to use a reliable barrier method (such as condoms) for at least 14 days after taking Ella if you are also using a hormonal contraceptive method.

Ella is not indicated for use in individuals with a confirmed or suspected existing pregnancy. It is designed to prevent pregnancy, not to terminate one. If you think you may already be pregnant, consult a physician before taking any emergency contraceptive.

Common side effects of Ella include headache, nausea, abdominal pain, fatigue, dizziness, and menstrual changes. Most side effects are mild and resolve on their own. If you vomit within three hours of taking Ella, contact your physician, as a repeat dose may be needed.

No. Ella is an emergency contraceptive only and provides no protection against sexually transmitted infections (STIs). If you are concerned about STI exposure, speak with a healthcare provider about appropriate testing and preventive options.

Doctronic uses an AI-powered evaluation to gather your health history and symptoms, which is then reviewed by a licensed physician. If a prescription is appropriate, the physician creates a personalized treatment plan and sends your prescription to your preferred pharmacy.

Yes. Doctronic works exclusively with licensed physicians who review every case individually. All consultations are HIPAA-compliant, and our clinical processes are doctor-reviewed and regularly audited to meet the highest standards of care. Doctronic is available to adults 18 and older in any U.S. state.