I suggest that you use the magnesium citrate oral solution. It comes in 10 oz. bottles and it is ready to drink. It is usually lemon flavored. Walgreen's has it's own brand and it also comes in cherry flavor. I get mine at WalMart for $1.12. A lot of surgeons direct their patients to drink this before surgery to clean out their bowels. It definitely tastes better than epsom salt. You should drink 3/4 cup of it (6 oz) at 6:00 p.m. and at 8:00 p.m. and then the same in the morning at 6:00 a.m. and 8:00 a.m.
I hope this helps.