I have taken LSD 3 times previously, so i have a general idea of what acid is supposed to feel like and what to expect while on the trip. The other night me and some buddies decided to take 2 tabs of it. However, it did not really feel like acid. My other friend who is an experienced acid user also said that it didn't feel like acid. The last time i took 2 tabs of acid the visuals were crazy and there were plenty of them. This time there were only minor visuals. I was definitely tripping pretty hard but it was different than acid. Is there any other drug that is put on tabs just like acid that would could have possibly taken? I just would like to know what it was/possibly was.