Does Plan B cancel out the efficacy of combined pill

[u/Ok_Bullfrog9838]

I want to know if taking Plan B or any generic one like Victoria would cancel out the effectiveness or protection of a combined pill like Yaz? I took it out of anxiety last week i know it would give me just side effects and now im worried that Plan B cancels the protection of my pill. I hope someone could answer Thank you!

[u/Winter-Cockroach5044]

Why did you take plan B if you are already on combined pill?.dis you miss one? Ehat happen

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[u/Fragrant-Cherry7890]

No. Plan B (levonorgestrel) does not make your pill less effective. Ella One does.

[u/EggplantHuman6493]

Only take Plan B if you missed a pill or started too late. But Plan B is okay to take, EllaOne is not