Possible Interaction: Propranolol and Quercetin

“ Quercetin elicited positive inotropism that was significantly reduced by propranolol indicating an involvement of the sympathetic nervous system.”

“In the same experimental conditions, propranolol (10 microM) did not modify the effect of genistein and kaempferol, but shifted the response curve of quercetin significantly to the right (13.2 +/- 1.2 vs. 17.7 +/- 3.4 microM).”

“Additive effects were observed between combinations …) and curcumin (75 µM); quercetin (75 µM) and curcumin (50 µM), … the basal ex vivo absorption of propranolol from 1.24 ± 0.03 µg/mL to 5.19 ± 0.12 µg/….10 µg/mL, and 4.07 µg/mL respectively, after 2 hours.”