you got nothing to worry about, you sound like a pussy anyways.. dont take it personal, just having some funzies....
Well, I've never noticed "shrinkage" but I do get very amorous on psychedelics and can maintain a stiffy for much much longer than normal, almost 5 whole minutes!!! Seriously, I have the opposite effect and psychedelics effect me like an aphrodisiac
I get crazy temperature swings while on LSD, but mostly I'm cold regardless of the temperature around me. The cold body temperature definitely makes my dick shrink. I don't necessarily think LSD causes shrinkage, and I have no problem getting hard on LSD.
I'm only posting again in defiance to the "shut up" stuff...... Really, though...to sum this up: it seems like everyone who actually answered the question said it affects them also. So, I think it is common. It's not a problem or anything, just an observation. (I'm not counting the answer(s) about aphrodisiac and stamina because I think that's unrelated. [or those answers that are just trying to be silly, manly, or dick waving], although I thoroughly enjoyed them. It's really about when you are not sexually aroused that's the issue.) I'll shut up now.