Day one of Strattera

Total bust!! He keeps putting it UNDER his tongue, crying saying he can't. Eventually the capsule broke open and made a mess versus getting into his system. Baby's therapist then showed up so I had to give up.  I think he's just refusing to take any meds what so ever. He's telling me I need to let him prove he doesn't need them. How do I do that when he's already proven he does need them??!!