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Volume 19 Issue 3
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Article Navigation >  Journal of Pharmaceutical Practice and Service  > 2001  >  (3): 151-152,192

FANG Qiang-san, MA Yong-de, ZHU Li-qing, SUN Cheng-chun. Stability of lidocaine hydrochloride injection after alkalinizing[J]. Journal of Pharmaceutical Practice and Service, 2001, (3): 151-152,192.
Citation: FANG Qiang-san, MA Yong-de, ZHU Li-qing, SUN Cheng-chun. Stability of lidocaine hydrochloride injection after alkalinizing[J]. Journal of Pharmaceutical Practice and Service, 2001, (3): 151-152,192.
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Stability of lidocaine hydrochloride injection after alkalinizing

  • General Hospital of Jinan Military Region, PLA, Jinan 250031, China

  • Received Date: 2000-12-29
  • OBJECTIVE To study the stability of lidocaine hydrochloride after alkalinzing.METHODS Lidocaine hydrochloride injection was diluted 4 kinds of concentration.Each sample was added 5% NaHCO3 with different amounts.The pH and concentration of lidocaine were determined in those special alkaline environment in different time.RESULTS The pH of 4 kinds of alkaline lidocaine were remarkably higher than before with theincrease of 5% NaHCO3.The concentration of lidocaine were remarkably increased by time.But the more 5%NaHCO3 added to,the less the concentration of lidocaine was notability.There was some needle-crystal in the solution after 24 hours.CONCLUSION The best amount of 5% NaHCO3 to add in is between 0.5ml to 2.0ml,and lidocaine hydrochloride injection couldnt put by for long time after alkalized.
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Stability of lidocaine hydrochloride injection after alkalinizing

  • General Hospital of Jinan Military Region, PLA, Jinan 250031, China
  • Received Date: 2000-12-29

Abstract: OBJECTIVE To study the stability of lidocaine hydrochloride after alkalinzing.METHODS Lidocaine hydrochloride injection was diluted 4 kinds of concentration.Each sample was added 5% NaHCO3 with different amounts.The pH and concentration of lidocaine were determined in those special alkaline environment in different time.RESULTS The pH of 4 kinds of alkaline lidocaine were remarkably higher than before with theincrease of 5% NaHCO3.The concentration of lidocaine were remarkably increased by time.But the more 5%NaHCO3 added to,the less the concentration of lidocaine was notability.There was some needle-crystal in the solution after 24 hours.CONCLUSION The best amount of 5% NaHCO3 to add in is between 0.5ml to 2.0ml,and lidocaine hydrochloride injection couldnt put by for long time after alkalized.

FANG Qiang-san, MA Yong-de, ZHU Li-qing, SUN Cheng-chun. Stability of lidocaine hydrochloride injection after alkalinizing[J]. Journal of Pharmaceutical Practice and Service, 2001, (3): 151-152,192.
Citation: FANG Qiang-san, MA Yong-de, ZHU Li-qing, SUN Cheng-chun. Stability of lidocaine hydrochloride injection after alkalinizing[J]. Journal of Pharmaceutical Practice and Service, 2001, (3): 151-152,192.
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