I understand how horrible constipation can be. Cogentin, used to calm akathisia, was terrible in that respect. I tried OTC suppositories meant to help, and even they fell short. Have you tried oral stool softener? They wouldn't be good to take daily, but occasionally. Again, they fell short for me. I ended up stopping the Cogentin and using something else for my akathisia, but if clozapin works well for your moods, do give all of these suggestions a try. Maybe something prescribed could help?

Do you drink coffee? That helps me under usual circumstances.