lsd is too a pill. ok maybe not but i though it was.
to quote erowid: "Today, LSD is most commonly found in the form of small squares of paper called blotter (full sheets of paper are decorated with artwork or designs, perforated, then soaked in liquid LSD solution and dried). Other forms include, pills , gelatin sheets or shapes (pyramids, cubes, etc), liquid, liquid sugar cubes, and powder."