IAP on its own, as said before, is not much fun. It's hard on the body and a little disorientating.
The solution is easy, if there's access to some other chemicals and a little common sense.
First, don't take to much, it's an inhibitor and releaser of the three main neurotransmitters (serotonin, dopamine and noradrenalin). I would say, don't go above 50 mgs
For the bodily, symptaticomimetic overstimulation, just take a betablocker, like propranolol, or metoprolol.
For the light disorientating edge, GHB does wonders. Actually GHB does the trick. It gives a good synergy with the IAP bodily aneastetic and yet hypereastetic feeling (if you know what I mean). And the GHB gives, along with the IAP a long, mellow euporia. But be aware to not overdose on GHB, for the IAP takes a long, long time, so several doses need to be taken. Over 24 hours afterward I dosed 32,5 mg IAP, I took 1 shot alcohol, and the mellow feeling came back. But alcohol and GHB don't mix and alcohol dulls and prostitutes the mind in that dominant, toxic way that makes it one of the most dreadful drugs known to mankind. (Sorry for that lithany...)
A benzodiazepin (temazepam in my case) was needed for sleep. Again, be careful with the GHB interaction.
So all in all, a little complicated, but then, very, yes very rewarding indeed.