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| Study on the Stability of Promethazine Hydrochloride in Xiaoerqingfeizhike Syrup |
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Chang Yilin; Liu Shsnbao Liu Ben
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| Abstract: |
| The stability of promethazine hydrochloride in Xiaoerqingfeizhike Syrupwas studiedby the staircase nonisothermal accelerated test. Promethazine hydrochloride was determined bythe three-wavelength spectropho tometry at 238, 252, 301.5 urn. The study showed |
| Key words: Stability of promethazine hydrochioride Staircase nonisothermal accelerated testThree-wavelength spectropho tometry |