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The American journal of emergency medicine • 1991 | View Paper
“Thus, pH adjustment of a solution of bupivacaine and hyaluronidase with sodium bicarbonate hastens the onset time and improves the initial success rate of peribulbar block.”
“The addition of sodium bicarbonate as a buffering agent to the local anesthetics lidocaine and bupivacaine can significantly reduce pain upon injection.”
“Injection of sodium bicarbonate into the limb 10 min before the release of the tourniquet suppressed the rate at which the concentration of bupivacaine decreased during the second phase.”
British journal of anaesthesia • 1980 | View Paper
“ Sodium bicarbonate has been reported to hasten epidural onset of chloroprocaine, lidocaine and bupivacaine while tris(hydroxymethyl) aminomethane (THAM) has been shown to delay the onset of epidurally administered chloroprocaine in parturients.”