Naltrexone – has been reported as a useful medication for HPPD as has the alpha-adrenergic anti-hypertensive clonidine.
For those who don’t know hppd is something that happens to 5-10% of people who use hallucinogens. I’d describe it as anxiety/feeling like you’re tripping all the time, even after the drug has worn off. Not to be confused with flashbacks which happen to 1% of people who have used hallucinogens. I reported terrible hppd when I mixed magic mushrooms with coffee. It was the worst thing I ever experienced for a year and a half. I couldn’t drive properly. I shouldn’t have driven. Panic attacks. Swirly vision. But ever since I started naltrexone it’s slowly gotten better. I know not too many people will have experienced hppd but if I could help one person by suggesting naltrexone for it, then it could save years of suffering for an individual. It’s really been a miracle worker for me.