Hi spikes. I am reluctant to ever give a person a "Hey, go ahead!" with such changes, but I have done similar in the long ago past. I guess if your pdoc isn't aware of you using Haldol as a prn (in conjunction with Risperdal), I'd at least pass it by a pharmacist to be 100% sure there are no issues taking both together. I know that there can, indeed, be issues with various bipolar medications taken together. For example, if I take my Tegretol XR (carbamazepine ER) with certain medications, it could potentially increase my Tegretol level or decrease the efficacy of the other medication. It depends on the medication what the result might be.

I don't think my psychiatrist would object as much to me going back to the just previous higher dose, than me lowering my dose on my own. Either way, I'd think he'd want the chance to veto such a decision, especially in the latter case. He's somewhat sternly told me he wants veto power in the latter case.

I find "prn" medications extremely useful, but in my case, my psychiatrist himself has prescribed them as "prn" and has given me guidelines on their usage (see examples in my signature below). If Haldol is not officially a "prn" medication for you, consider discussing making it so with your pdoc. My psychiatrist is also really great about giving me medication change suggestions over the phone, without the need for an emergency appointment. He did that just today! I know that many people don't have that benefit.