L.S.D. is an Indica-dominant strain, named after a potent psychedelic drug because of the strain’s extremely psychedelic and cerebral high. The strain starts with an upbeat sense of happiness that can cloud the mind and leave some users completely confused and “mentally stuck.” This degree of mental stimulation is quite rare for an Indica. Not surprisingly, L.S.D. also has typical Indica-based body effects. Users often notice the powerful body numbing 1 to 2 hours after ingestion, once most of the cerebral effects wear off. The negative effects may include cotton mouth, dry eyes, dizziness, headaches, and minor paranoia.