A tab is just a square of blotting paper. It can be any amount, but is most often 1-2 doses. LSD can cause persistent hallucinations, though these tend to be m

A tab is just a square of blotting paper. It can be any amount, but is most often 1-2 doses. LSD can cause persistent hallucinations, though these tend to be minor, like halos around lights. It can also leave a lasting impression on your mind. This is usually a positive, and is one of the reasons it's interesting for anxiety and PTSD. Physiologically, it's remarkably safe. People have taken 1000s of times the standard dose and been fine. It's worth being a little alarmist though, as a "bad trip" can occur at any dosage, and can have extremely unpredictable effects. It's usually upsetting but manageable, but the horror stories are real too. Powerful stuff. Do not combine it with alcohol. Anecdotally, my worst experience (out of about 5 times) was throwing up on myself then sitting in a river for 3 hours trying to feel clean. My friend punched a hole in his wall and took a shit in it.