2-Iodo-LSD
2-Iodo-LSD (IOL) is a putatively non-hallucinogenic serotonin receptor modulator of the lysergamide family related to 2-bromo-LSD (BOL-148) and lysergic acid diethylamide (LSD). It is the 2-iodo derivative of LSD. == Use and effects == According to Alexander Shulgin in his 1997 book TiHKAL (Tryptamines I Have Known and Loved), it is unknown whether 2-iodo-LSD has ever been tested in humans.