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.
May 2021 in “Journal of the Endocrine Society” Long-term opioid use can cause a serious condition where the adrenal glands don't work properly, which doctors should watch out for.
October 2020 in “Authorea (Authorea)” Men and women react differently to opioids, with hormones potentially influencing these differences.
September 2010 in “European Urology Supplements” Opioid use may lower PSA levels, suggesting a possible role in prostate cancer control; PSA testing is useful for detecting prostate cancer; serum triglycerides are not linked to prostate cancer risk; and higher urethral PSA levels may be associated with local hormone activity.
140 citations,
February 2014 in “Neuron” Delta opioid receptors help regulate touch sensation by reducing neurotransmitter release in the spinal cord.