Asking Sibelium (flunarizine) today will not make the morning after pill you took five days ago less effective. Emergency contraception works very quickly to prevent pregnancy, and its primary action is already complete after five days. Additionally, there is no known interaction between Sibelium and emergency contraceptive pills that would reduce their effectiveness. You can safely take your medication as prescribed. Please take care of yourself, and feel free to reach out if you need any further reassurance.
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Will taking Sibelium 5mg make the morning after pill I took five days ago less effective?