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Colorimetric methods for the quantitative determinations of chlorpheniramine maleate, ephedrine hydrochloride, and guaiacolsulfonate potassium in a cough syrup containing color (amaranth) are reported. Chlorpheniramine maleate can be assayed using the cyanogen bromide method as reported in the
A method is presented for the determination of chlorpheniramine maleate, dihydrocodeine bitartrate and ephedrine hydrochloride in a three-component mixture without prior separation. Chlorpheniramine maleate was determined by the first and second derivative-differential spectrophotometry, while
In this study, we aimed to review the literature on phenytoin intoxication induced by compound phenytoin sodium, ephedrine hydrochloride and theophylline tablets (CPEHTT).A literature search was performed in the following databases: WANFANG DATA, HowNet, Cardiac hypertensive structural changes, catecholamine-related cardiomyopathy, and congestive heart failure (CHF) have been encountered in pheochromocytoma, as a result of prolonged exposure to high concentrations of endogenous catecholamines. A 34-year-old man presented with severe hypertension,
The Food and Drug Administration (FDA) is amending the final monograph (FM) for over-the-counter (OTC) bronchodilator drug products to add additional warnings (e.g., an "Asthma alert'') and to revise the indications, warnings, and directions in the labeling of products containing the ingredients
Three methods were applied for the analysis of 2 multicomponent mixtures containing dextromethorphan hydrobromide, phenylephrine hydrochloride, chlorpheniramine maleate, methylparaben, and propylparaben, together with either sodium benzoate (Mix 1) or ephedrine hydrochloride and benzoic acid (Mix
A generally applicable high-performance liquid chromatographic method for the qualitative and quantitative determination of pharmaceutical preparations containing phenylephrine hydrochloride, paracetamol, ephedrine hydrochloride, guaifenesin, doxylamine succinate, and dextromethorphan hydrobromide
A reversed-phase high-performance liquid chromatography (HPLC) method with dual optical rotation/UV absorbance detection has been developed for the determination of enantiomeric purity of ephedrine hydrochloride and pseudoephedrine hydrochloride using an achiral column. The method gave a correlation