The United States Pharmacopoeia (USP) classifies impurities in various sections: 1. Impurities in Official Articles 2. Ordinary Impurities 3. Organic Volatile Impurities C] ICH Terminology According to ICH guidelines, impurities in the drug substance produced by chemical synthesis can broadly be classifi...
15. European Pharmacopoeia Online version, https://pheur.edqm.eu/home (2022). 16. Reddy, J. M., Jeyaprakash, M., Madhuri, K., Meyyanathan, S. & Elango, K. A sensitive RP-HPLC method for simultaneous estima- tion of diethylcarbamazine and levocetirizine in tablet ...
A critical step is the prepara- tion of the mother tincture, whose production technique is described in the French Official Pharmacopoeia (X edition 1983). The ratio between the dried product and water-alcohol mixture is 1:10. The degree of water-alcohol mixture varies in relation to...
Full size image Levocetirizine dihydrochloride (LVC); Fig.1B, is chemically designed as 2-(2-{4-[(R)-(4-Chlorophenyl)(phenyl)methyl]piperazin-1-yl)ethoxy)acetic acid8. It is given orally to children for the symptomatic relief of allergic rhinitis and chronic urticaria9. It is usually comb...
Reynolds JEF, Parfitt K, Parsons AV, et al., editors. Martindale: the extra pharmacopoeia. 30th ed. London: Pharmaceutical Press, 1993 Google Scholar Collier JG, Robinson BE, Vane JR. Reduction of pressor effects of angiotensin I in man by synthetic nonapeptide (B.P.P.9aor SQ 20,881) ...
Martindale. In Reynolds (Ed.) The extra pharmacopoeia, 1073–1112, 1057–1058, The Pharmaceutical Press, London, 1989 Google Scholar McArthur KE, Anderson DS, Durbin TE, Orloff MJ, Dharmsathaphorn K. Clonidine and lidamidine to inhibit watery diarrhoea in a patient with lung cancer. Annals...
Reynolds JEF, Parfitt K, Parsons AV, et al., editors. Martindale: the extra pharmacopoeia. 30th ed. London: Pharmaceutical Press, 1993 Google Scholar Collier JG, Robinson BE, Vane JR. Reduction of pressor effects of angiotensin I in man by synthetic nonapeptide (B.P.P.9aor SQ 20,881) ...
This research was funded by the National Natural Science Foundation of China (grant No. 22278443), the CAMS Innovation Fund for Medical Sciences (grant No. 2022-I2M-1-015), and the Chinese Pharmacopoeia Commission Drug Standard Promoting Fund (grant No. 2023Y11). ...
According to the WHO European Pharmacopoeia [48], the use of liquid thin layer chromatography (TLC) is recommended for the identification of specific antibiotics (neomycin). Jain et al. [49] separated minocycline in plasma using the TLC gel coated with silica 60F254 and sprayed with a mixture...