VT, you CAN take both (I recommend the diph for better sleep with less drowsiness the day after, and take ONLY ONE), but..... the pharm instrux will say not to do it, so when I did it I made sure hubby knew to keep watch till I was sure how it would hit me, and I did NOT take them at the same time but took the ami 2 hours earlier tha the diph so they did not both "kicj in" at the same time.

And MAN was I out cold. I CANNOT guarantee you will wake up enough to pee... (where you prefer to pee)..... OK you asked! :~)

I'm actually gonna cut a diph in half to see if it does the job.

~S~