A new rapid, specific, and convenient colorimetric method for the determination of procaine hydrochloride in pharmaceutical preparations is described. This method is based on measurement of the intensity of the orange-red color developed when procaine hydrochloride is allowed to react with 1,2-naphthoquinone-4-sulfonic acid sodium salt in aqueous solution. Beer's law is followed over 6.0--20.0 ...

In the present work, we developed a simple, sensitive and inexpensive method to determine dopamine hydrochloride using potassium ferricyanide-Fe(III) by spectrophotometry. The results show that Fe(III) is deoxidized to Fe(II) by dopamine hydrochloride at pH 4.0, and then Fe(II) reacts with potassium ferricyanide to form a soluble prussian blue (KFe(III)[Fe(II)(CN)6]). The absorbance of this pro...

BACKGROUND Evaluating the potential risk of metabolic drug-drug interactions (DDIs) is clinically important. OBJECTIVE To develop a physiologically based pharmacokinetic (PBPK) model for sarpogrelate hydrochloride and its active metabolite, (R,S)-1-{2-[2-(3-methoxyphenyl)ethyl]-phenoxy}-3-(dimethylamino)-2-propanol (M-1), in order to predict DDIs between sarpogrelate and the clinically releva...

Guanidine hydrochloride has been widely used in the initial recovery steps of active protein from the inclusion bodies in aqueous two-phase system (ATPS). The knowledge of the guanidine hydrochloride effects on the liquid-liquid equilibrium (LLE) phase diagram behavior is still inadequate and no comprehensive theory exists for the prediction of the experimental trends. Therefore the effect the ...

This study aimed to explore the role and mechanism(s) of flunarizine hydrochloride in the intracerebral hemorrhage (ICH) rats. The 32 adult male Sprague Dawley (SD) rats were randomly assigned into four groups: control group, sham group, ICH group, and FLU + ICH group. The effects of flunarizine hydrochloride were assessed on the basis of hematoma volume, blood-brain barrier (BBB) integrity, an...

Aim:The purpose of this in vitro study wasto evaluate whether the toxic effects are reduced by using combination 0.5% Benzydamine hydrochloride along with 0.2% Chlorhexidine gluconate and to compare it 0.2 % alone. Materials Methods: Two groups a total 160 cultured cell samples consisting 80 each Control group (0.2% Gluconate alone)and Experimental (Combination 0.15% Hydrochloride). Again subdi...

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A simple, specific, accurate and stability-indicating reversed phase high performance liquid chromatographic method was developed for the simultaneous determination of Nebivolol hydrochloride and Cilnidipine in tablet dosage form. A Spheri-5-RP-18 column having 250×4.6 mm i.d., with mobile phase composed of Methanol: 20 mM Ammonium acetate (85:15, v/v; pH 4.0 adjusted with Formic acid. The rete...