SWIM has had LSD with tropane alkaloids (atropine, hyoscyamine, and scopolamine) added to it in the past many times. Some blotter manufactures add it to increase the visuals, I’ve heard. Such acid has a very different body feel to it, you can tell tropane alkaloids are in it. SWIM likes it actually, unless they put too much. SWIM found that kind of acid to be much more visual with a smoother body feel, as long as the tropane alkaloid content wasn’t too high. SWIM’s had some blotter that had way too much tropane alkaloids added to it and a reddish face, slightly dry mouth and couldn’t urinate properly, but the trip was very nice. SWIM never paid much attention to the duration of the acid, but I think it was slightly longer, now that you mention it. SWIM wishes that acid sheet manufacturers putting additional things in the acid would at least mark the blotters so that you know they have tropane alkaloids in them because too many hits of such acid is very unpleasant and could be dangerous.

How much did you use with the acid? Did you notice any other changes in the effects?