Like "Welcome to the site Chissy. That is quite a cocktail to be taking all at once and sometimes it is combination of things. Whenever I get a new pill or a suggestion for one I go to and look them up. They also have an interaction section where you can list all the drugs and doses you are taking and they will tell you of any interactions between what you are taking. The other person who really knows more is your pharmacist. You want to have a good relationship with them as well. They can give you great advice on mixing and some alternatives if needed. I would be lost without my pharmacist. Now the falling asleep could be more related to your sugar levels. Sometimes if they are higher than you are used to you can get sleepy. So if it is after a meal, you may want to look into that."