15 citations
,
May 2007 in “Hormones and Behavior” Finasteride boosts morphine's pain relief, stops tolerance, and reduces withdrawal in rats.
63 citations
,
August 1996 in “Forensic Science International” Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.
14 citations
,
January 1996 in “Journal of Forensic Sciences” Hair can absorb and transfer opiates when soaked in water, with damaged hair absorbing more.
11 citations
,
July 2008 in “European Journal of Drug Metabolism and Pharmacokinetics” Finasteride helps reduce pain and inflammation in animals.
183 citations
,
January 1987 in “British Journal of Anaesthesia” Opioid painkillers can cause many side effects, including breathing problems and addiction, but are generally considered safe when used properly.