Deliriants aren't meant to have a good trip on. (Never done them myself, maybe in the future some first generation anti-histamine) The full spectrum of effects caused by these types of drugs are more like a shipment in a dark truck than a journey on a bicycle. And physically there's great discomfort and dangerous side effects at a high dose. Threshold or low dosage trips usually give blurry vision, euphoria and great libido enhancement. Delirium fluctuates, at some points, people feel almost sober and even appear so, then they spontaneously close their eyes for like minutes and minutes, they slip truly in a real seeming world oblivious, then they slip back to reality and see people or objects with open eyes in their real setting which do not exist. The order of logic in all this is shot to pieces and runs totally random. Literally no way to make a distinction between fantasy and reality, unlike psychedelics which just bend or transform the real existing world itself and have a valuable intellectual foundation.
Anyway, some erowid notes on dramamine:
The auditory hallucinations can be enjoyable: listening to music, you may find yourself hearing melodies and even lyrics that just aren't there. Often, these changes are improvements!
Usually (not always) by touching the object/ hallucination it will vapourize and disappear. Try not to do anything you wouldn't normally do in real life. If something strange happens, think "Wait a minute... is this physically possible?
Some users take ephedrine tablets (Mini-thins) to help breathe easier and to rid some of the bad effects. Usually the dose of 25mg per 250mg of diphenhydramine HCl or 500mg of dimenhydrinate. The ephedrine also helps keep the trip clear and easy to remember. Other users report that caffeine (Vivarin, NoDoz) will help keep them awake during the trip. Note that the cheapest way of keeping awake is probably to drink some coffee.
I remembering reading on an erowid report that indigenous shamans in the rain forest swore that that particpant who has drinked Datura must NOT fall asleep and may NOT stand up or walk, and the trip should ALWAYS take place at night or in almost complete darkness. It makes sense why if you have done it this way, so has been said by the guy who underwent it in South America.