I need emergency contraception now
Levonelle® One Step is less likely to work if…
Levonelle® One Step is less likely to work if…
- You have unprotected sex again after taking Levonelle® One Step
- You have already had unprotected sex earlier in your menstrual cycle
- You vomit within 3 hours of taking Levonelle® One Step. (Being Sick)
- You were already pregnant when you took Levonelle® One Step
- Another medication that you are taking may have reduced the effectiveness of Levonelle® One Step (e.g. certain anti-epileptic drugs and tuberculosis treatments)
- You have a medical condition that stops Levonelle® One Step being absorbed properly, such as Crohn's disease
Levonelle® One Step will not work if you are already pregnant.


