My cat WeeMan is 16yrs old and has been constipated for a few days now. I usually give him Miramax with his wet food. I think I missed giving it to him? And before this he lost weight. His regular weight is 19-ish lbs. I wanted to know if there are any type of suppositories that I can get at the store to help him? The picture on left side was his regular weight. Right picture is him now!