Disclaimer: The information contained herein should NOT be used as a substitute for the advice of an appropriately qualified and licensed physician or other health care provider. The tool is not a substitute for the care provided… (more)
“ Morphine increased the Pentobarbital-Chlorpromazine-Alcohol Group, Amphetamine , the Lysergic Acid Diethylamide and the Morphine-Benzedrine Group scores and decreased Benzedrine Group scores on the Addiction Research Center Inventory.”
The Journal of pharmacology and experimental therapeutics • 1994 | View Paper
“An antagonism between morphine and amphetamine is demonstrated but the anti-amphetamine effect of morphine is different from that of the neuroleptic drugs.”
“In male rats morphine dependence also increases amphetamine-stimulated locomotor activity (open-field), increases amphetamine brain levels, and decreases in vitro metabolism of aniline.”
“This paper discusses evidence that the analgesic effects of morphine and amphetamine in the formalin test are synergistic, and depend on dopaminergic neurotransmission involving the dopamine cells of the ventral tegmental area.”
“ Amphetamine insignificantly diminished the development of tolerance to cataleptogenic effects of morphine in rats but markedly inhibited the development of tolerance to morphine-induced hyperactivity in mice.”
Polish journal of pharmacology and pharmacy • 1981 | View Paper
“In the morphine‐dependent animal the circling rate to amphetamine given 4 days after morphine was first implanted was depressed but after withdrawal with naloxone a day later the rate increased, returning to normal after 21 days.”