PDMS is also used as a component in silicone grease and other silicone based lubricants, as well as in defoaming agents, mold release agents, damping fluids, heat transfer fluids, polishes, cosmetics, hair conditioners and other applications. PDMS has also been used as a filler fluid in breast implants.
LSD is a powerful hallucinogenic drug that can be psychologically addictive. LSD effects range from sweating and tremors to delusions of invincibility.
Flashbacks do occur, but very rarely. Reports of drug-induced flashbacks have existed since the 1950s. Though the term flashback wasn't used specifically until 1969, as early as 1954 scientists noticed LSD users complaining of a reoccurrence of an LSD-like state long after the drug's effects should have worn off.