Can drinking cola after taking birth control pills affect contraceptive effect?

Hello, no, you don't have to worry.

Drinking coke affects sperm growth, so drinking coke after emergency contraception has no effect.

I just hope that pregnant couples should try not to drink too much, because it contains some spermicidal effects, but once or twice is not enough to affect it. The sooner you take the medicine, the better the effect.

Emergency contraceptives can affect menstruation. Try to eat less.

I hope my answer can help you, thank you.