Metamizole sodium is a non-steroidal anti-inflammatory drug (NSAID), commonly used in many countries as a powerful analgesic and antipyretic. It is better known under the names Dipyrone, Analgin, Novalgin, Algocalmin, and Melubrin.
Molecular Formula C13H16N3NaO4S, molecular weight 333.33
Quality Standard: DAB, EP
Application : Analgin is Antipyretic analgesics of Pyrazolones. It indicated for treatment diseases caused by high fever and various pain. It is also indicated in fever, headache, rheumatic pain, neuralgia and dysmenorrheal ect. It is freely soluble in water and rapidly effect. It is prepared ampoules .
Certificate Of Analysis: DAB10/EP6
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Tests |
Standards |
Results |
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Characteristic |
Almost white crystalline powder |
Conforms |
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Identification |
Positive |
Positive |
|
Colour of solution |
Conforms |
Conforms |
|
Acidic or alkalinic substance |
Conforms |
Conforms |
|
Related substance |
≤1% |
＜1% |
|
Sulphate |
≤0.1% |
＜0.1% |
|
Heavy metals |
≤0.004% |
＜0.002% |
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Loss on drying |
4.9%~5.3% |
5.2% |
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Assay |
98.0%~101.0% |
99.2% |
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Conclusion： Complies with DAB10 |
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