Can i take half an adipex-p in the morning and half a tenuate in the afternoon to enable me to have a full day of hunger relief without a restless pm?

Seek a bariatric doc: Bariatric physicians are the ones who work regularly with patients on such medications. Personally I do not recommend using them at all, because of the risk of agitation, cardiovascular side effects, etc. If you've been prescribed these medications by a physician, you should ask him or her about this. If you've gotten the drugs without a prescription, you should not take them, period.