Hi all im b/feeding our new bub but am expressing to do it.But am wanting to know if anyone knows how long it takes for pain meds to go through your system before its clear?

I only ask as ive needed to take mersondole and we have enough to still feed bubs and will still express but will throw it out due to the meds passing into the milk i just dont know how long it takes to pass through :S

Sorry to be a pain ive just got no idea lol