The usual thing to try is to be sure you eat a full meal before taking your
medication. Some people take it with their dinner at night. Also, what dose is he on? I am on the 400mg. capsule, and I take mine every morning with all my other medications, but first I make sure I eat a good breakfast.
The other thing he can do is if the tablet or capsule is scored in the middle, he can split it in 2, and take one half in the morning with breakfast, and the other half after dinner.