If it is an emergency contraceptive pill and you vomit two hours after taking it, it may affect the effectiveness of the contraceptive and you will need to take a refill. If it is a short-acting contraceptive pill, the protective effect of contraception will not disappear, but also need to take a supplementary dose immediately.
1. Emergency contraceptive pills: If it is an emergency contraceptive pill, the main component is progesterone, after the use of the gastrointestinal tract stimulation is greater, easy to cause vomiting, eat two hours after vomiting may affect the effect of contraception, need to make up for taking a pill.
2. Short-acting contraceptive pills: short-acting contraceptive pills are compound drugs formulated from estrogen and progesterone, and need to be taken regularly every day, this kind of drug is less stimulating to the body, and generally will not cause vomiting.
However, if vomiting occurs suddenly, the protective effect on contraception will not disappear within 12 hours, but it needs to be replaced immediately and the next pill should be taken at a regular time.
There are different types of birth control pills, and the usefulness of vomiting two hours after taking a pill is uncertain, and should be analyzed on a case-by-case basis, consulting a doctor if necessary. The use of the above medications should be in accordance with medical advice.