Atypical antipsychotics are newer second-generation antipsychotics with weak dopamine type 2 blocking but potent 5-HT2 antagonistic activity. They are considered first-line treatments for schizophrenia and gradually replace typical antipsychotics. Extrapyramidal side effects are minimal, and they tend to improve impaired cognitive function in psychotics. Quetiapine fumarate is an atypical antipsychotic drug used to treat schizophrenia, mania and depression in people with bipolar disorder combined with other drugs or alone. Quetiapine was developed in 1985 and approved for medical use in the USA in 1997. Thorough computer-aided literature, surveys revealed that numerous analytical methods were reported over the years. The present study reviews analytical methods with their validation parameters published during the last 22 years (1999–2021) either as a single entity or combination in dosage form, and determination from biological samples. Novel strategies for increasing separation quality, such as QbD analysis and green spectroscopy, were discovered during the evaluation, and this review can be utilized for further research reference.
The aim of this research work was to develop a simple, accurate, sensitive and validated Ultra Violet (UV) spectrophotometric assay using the multivariate regression method for the analysis of Cilnidipine. This multivariate calibration technique was based on equations constructed using linear regression analysis using the correlation between absorbance and concentration at five selected equidistant wavelengths. Cilnidipine had a maximum absorbance at 240 nm. The findings were statistically analyzed for significance. A linear plot in the concentration range of 3-9 μg/mL, with a regression coefficient of 0.999 was obtained. The % RSD for intra-day and Inter-day precision were 0.4558 and 0.6099, respectively. The assay was determined and found to be 99.1% - 101.67% % w/w. Keywords: Cilnidipine, Antihypertensive agent, UV spectrophotometry, Multivariate calibration, Assay, ICH guidelines).
Oxetacaine is a potent local anesthetics used to relieve pain associated with peptic ulcer. The current method details about a rapid, accurate and precise HPTLC technique for the assessment of Oxetacaine in Pharmaceutical formulation. Chromatographic resolution was carried out on precoated HPTLC plates (Silica gel 60 F254 on Aluminum plate) employing methanol: water: glacial acetic acid (8: 1.8: 0.2 v/v/v) as mobile phase. Densitometric assessment was carried out at 220nm [Camag TLC Scanner III with winCATs software (version – 1.3.4)]. The drug was identified with a Rf value of 0.61. The reliability of the projected method was ascertained by evaluating various validation parameters as per ICH guidelines. The proposed technique can evaluate ten or more formulation units concurrently in a single run and affords a more rapid and cost-effective QC tool for regular analysis of Oxetacaine in pharmaceutical formulations.
The aim of the present work to develop an accurate, simple, sensitive, and validated Ultra violet (UV) spectrophotometric procedure using multilinear regression method for the analysis of Ondansetron in its bulk and commercial dosage form. The multivariate calibration approach was based on equations constructed using linear regression analysis using the correlation between absorbance and concentration at selected five different wavelengths. Ondansetron had a maximum wavelength of 246 nm. The findings were statistically analysed. A linear plot in the concentration range of 5-15 µg/mL, with a regression co-efficient of 0.999 was obtained. The % RSD for intra-day and Inter day precision were 0.0409 and 0.0228, respectively. The assay was determined and found to be 98.38 % – 101.10 % w/w.
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