How long after weaning did constipation resolve?

I’ve been bf for 14+ months and just started weaning 4 days ago. During my bf journey I have had to take 3 Colase/day the entire time due to constipation which caused anal fissures (side note - everyone talks about hemorrhoids but no one talks about anal fissures 😩) I tried fiber supplements and changing my diet and this was the only sustainable thing that worked.

I’m excited to stop taking meds for this, but I also know my body will keep making breastmilk for a while so how do I know when to stop taking them? I know I can slowly wean off of them and see what happens but I’m nervous to cause the anal fissures to return and I’m also curious to hear others experiences!