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What is the difference between drug product and drug substance?
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Answer Posted / b.gangatharan
Drug substance is mostly composed of API or the naked drug without excipients.
Drug product is the formulated mixture of drug substance and excipients as the final marketed dosage forms like tablets,capsules etc...
Regards,
B.Gangatharan,
Caplin point Ltd,
Pudhucherry.
| Is This Answer Correct ? | 16 Yes | 0 No |
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My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
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