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Vomiting after emergency contraception: When to Get Advice

Illustration about vomiting after emergency contraception

If you vomit soon after taking an emergency contraceptive pill, contact a pharmacist or contraception service promptly. The dose may not have been fully absorbed, and another dose or a different emergency method may be needed. Keep the packet so the exact medicine is clear.

Note the two times that matter

Write down when you took the pill and when you vomited. Also mention when sex happened, any previous emergency contraception in this cycle, and medicines you take. Those details help the professional advise you without guessing which product or time window applies.

Vomiting within the first three hours needs particular attention. Clinical guidance and the Levonelle leaflet advise a replacement dose after vomiting during that interval. Some general patient information uses a shorter two hour threshold, so do not assume vomiting between two and three hours is irrelevant. Ask promptly and follow the specific product and professional advice.

Do not confuse nausea with vomiting

Feeling sick without vomiting does not mean the tablet was lost. Do not take extra emergency pills simply because you feel nauseated or anxious about whether the first dose worked.

If vomiting continues, explain that another oral dose may also be difficult to keep down. The clinician can consider options, including treatment for nausea when appropriate or a copper coil if suitable. The emergency method guide explains why the choice depends on more than the name of the pill.

Avoid improvising with a different pill

Do not combine different emergency pill types on your own. Ulipristal and progestogen containing medicines can affect each other’s action when used close together. A pharmacist needs to know everything already taken before recommending a replacement or another emergency treatment.

Once the immediate problem is addressed, confirm when to start or resume regular contraception. The continued protection guide covers the questions to ask about condoms and later sex.

Keep the testing plan

Even if a replacement dose is taken, emergency pills are not completely effective. Ask when to take a pregnancy test and retain that date. Report persistent illness or concerning pain rather than assuming every symptom is a routine medicine effect. The appointment should leave you with both an immediate treatment instruction and a clear plan for what happens next.

References
  1. NHS: Emergency pill side effects (opens in a new tab)
  2. Bayer: Levonelle One Step patient leaflet (opens in a new tab)
  3. CDC: Emergency contraception practice guidance (opens in a new tab)
  4. FSRH: Emergency contraception clinical guideline (opens in a new tab)

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