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“When puerarin and papaverin were given intravenously to mice at the dosages of 52 and 10 mg/kg respectively, both showed protective effects on the microcirculatory disturbance induced by adrenaline administered locally 5 min later.”
“ Papaverine showed a non competitive antagonism against epinephrine but was ineffective against Ca2+; verapamil antagonized both the action of epinephrine and Ca2+ in a different manner but at the same concentrations.”
“Antagonism by papaverine or theophylline was increased by prior or simultaneous treatment with salbutamol, isoproterenol, epinephrine , or norepinephrine.”
“The superprecipitation increasing effect of adrenaline and histamine were inhibited by papaverine , nitrite and flufenamic acid in very low concentrations.”
“In rat diaphragm, papaverine increased glycogenolysis to the same extent as epinephrine and had a synergistic effect with epinephrine on glycogen breakdown.”