NEW PHARMACEUTICAL DOSAGE FORMS USED IN THE TREATMENT OF BREAST CANCER. LIPOSOMES

2021 ◽  
Vol 2 (1) ◽  
pp. 10-24
Author(s):  
Ani-Simona Sevastre ◽  
Stefania Carina Baloi ◽  
Catalina Elena Cioc ◽  
Alexandu Oprita

In order to obtain antineoplastic compounds and innovative formulations, new technologies and testing methods are continuously being developed. Unfortunately, besides cancer cells, chemotherapy also affects normal cells. An option to avoid toxicity is represented by the targeted cancer treatment using novel pharmaceutical dosage forms. Liposomes represent a relatively new pharmaceutical dosage form, used for their many advantages. In this article, the methods of liposomal preparation are mentioned, along with the classification and the latest improvements involving this pharmaceutical form. The bioavailability of conventional liposomes is currently improved by developing photodynamic liposomes, pH or temperature sensitive liposomes and targeted liposomes.

2020 ◽  
Vol 16 ◽  
Author(s):  
Cansel Kose Ozkan ◽  
Ozgur Esim ◽  
Ayhan Savaser ◽  
Yalcin Ozkan

: The content and the application of pharmaceutical dosage forms must meet several basic requirements to ensure and maintain efficiency, safety and quality. A large number of active substances have limited ability to direct administration. Excipients are generally used to overcome the limitation of direct administration of these active substances. However, the function, behavior and composition of the excipients need to be well known in the design, development and production of pharmaceutical dosage forms. In this review, excipients used to assist in any pharmaceutical dosage form production processes of drugs, to preserve, promote or increase stability, bioavailability and patient compliance, to assist in product identification / separation, or to enhance overall safety and effectiveness of the drug delivery system during storage or use are explained. Moreover, the use of these excipients in drug delivery systems are identified. Excipient toxicity, which is an issue discussed in the light of current studies, also discussed in this review.


2015 ◽  
Vol 12 (2) ◽  
pp. 171-179 ◽  
Author(s):  
Nahid Sharmin ◽  
Nazia Sultana Shanta ◽  
Sitesh C Bachar

A simple, reliable, precise and sensitive UV-spectrophotometric method was developed and validated for the estimation of azithromycin in pharmaceutical dosage form and compared with official USP 2010 method. The proposed method utilizes the oxidation of azithromycin with potassium permanganate to liberate formaldehyde. This formaldehyde reacts with acetone-ammonium reagent and produces yellow colored chromogen 3,5-diacetyl-2,6-dihydrolutidine. The colored solution exhibited a maximum absorption at 412 nm which can be detected with UVspectrophotometer. The method was found linear over the concentration range 80% to 120% of the working concentration (R2=0.999). The intra- and inter-day RSD (n = 6) was ? 2.0%. The developed method was validated according to ICH guidelines and values of accuracy, precision and other statistical analysis were found to be in good accordance with the prescribed values. The proposed method was successfully applied for determination of azithromycin and the results have been compared with HPLC and thus enabling the utility of this new method for routine analysis azithromycin in pharmaceutical dosage forms DOI: http://dx.doi.org/10.3329/dujps.v12i2.21981 Dhaka Univ. J. Pharm. Sci. 12(2): 171-179, 2013 (December)


2017 ◽  
Vol 9 (6) ◽  
pp. 75
Author(s):  
Ritesh Kumar ◽  
Amrish Chandra ◽  
Swati Gupta ◽  
Pawan Kumar Gautam

Objective: The objectives of the present research was to develop a simple, precise, economical, accurate, reproducible and sensitive method for the quantitative estimation of lafutidine in bulk and its pharmaceutical dosage forms by Ultra Violet (UV) absorption spectrophotometry.Methods: The method uses 0.1 N HCl, pH 1.20 as a solvent of choice for the quantitative estimation of lafutidine in bulk and its tablets dosage form by UV absorption spectrophotometry at a wavelength of 290 nm. The method was validated for parameters like linearity, range, precision, Limit of Detection (LOD), Limit of Quantification (LOQ), accuracy, recovery and stability of the analyte.Results: Lafutidine exhibited absorbance maxima at 290 nm in 0.1 N HCl, pH 1.20 solvent. The developed method was validated as per the ICH validation guidelines. Beer’s law was obeyed in range of 0-30 µg/ml with r2= 0.9997. The LOD and LOQ values of lafutidine were found to be 0.545 µg/ml and 1.654 µg/ml respectively. The mean % recovery for the developed method was found to be in the range of 99.25 to 99.45 % respectively for the marketed dosage forms. The developed method was also found to be robust.Conclusion: The developed method was found suitable for the routine quantitative analysis of lafutidinein bulk and pharmaceutical dosage form. It was also concluded that developed UV spectrophotometry method was accurate, precise, linear, reproducible, robust and sensitive.


Author(s):  
BHAGYASHRI S. SHINDE ◽  
M. S. KALSHETTI ◽  
ANJALI P. KOKANE

Objective: To developed and validated UV spectrophotometric method for the estimation of ipratropium bromide in API and pharmaceutical formulation. Methods: Methanol is used as a solvent and the absorbance of the drug was measured at absorbance’s maxima of ipratropium bromide max is 214 nm. Results: Maximum absorbance obtained in 214 nm. Calibration curve plotted in concentration range 20-120 µm/ml exhibit the linearity relationship with line equation y=.0.0091x+0.1503 The Accuracy was found to be 99.7-100.2%, the precision %RSD= 0.08613-0.2668, and the LOD and LOQ is 6.33, 19.19. The method was found to comply all the validation parameters as per the ICH guideline indicating the sensitivity of the method analyte. Conclusion: This method is used as satisfactory for the routine analysis of ipratropium bromide in API and pharmaceutical dosage forms.


Author(s):  
Rajan V. Rele ◽  
Prathamesh P. Tiwatane

Simple sensitive and accurate extractive colorimetric method was developed for the estimation of favipiravir in Pharmaceutical dosage forms. The method was based on the formation of colored ion pair complexes by the drugs with thiocynate ions. These ion pair complexes were quantitatively extracted under the experimental condition in chloroform. The absorbance values were measured at 618 respectively. The proposed method was validated statistically. A recovery of method was carried out by standard addition methods. The Beer’s law ranges were found to be 1-12μg/ml, respectively. The low values of standard deviation and percentage RSD indicate high precision of method. Hence the method is useful for routine estimation of favipiravir in tablets respectively.


2014 ◽  
Vol 2 (02) ◽  
pp. 108-114
Author(s):  
Manish Jaimini ◽  
Arpit Jain ◽  
Sanjay K. Sharma ◽  
Shailender Mohan

There are many ways to coat tablets. Coatings are a very important part in the formulation of pharmaceutical dosage form to achieve excellent formulation quality (e.g., color, texture, mouth feel, and taste masking), physical and chemical protection for the drugs in the dosage forms, and modification of drug release characteristics. Most film coatings are applied as aqueous or organic-based polymer solutions. Such film coating brings their own disadvantages. Solventless coatings are alternative technique of coating. Solventless coating technologies can overcome many of the disadvantages associated with the use of solvents (e.g., solvent exposure, solvent disposal, and residual solvent in product) in pharmaceutical coating. Solventless processing reduces the overall cost by eliminating the tedious and expensive processes of solvent disposal/treatment. In addition, it can significantly reduce the processing time due to reduction of step of drying/evaporation. These environment-friendly processes are performed without any heat in most cases (except hot-melt coating) and thus can provide an alternative technology to coat temperature-sensitive drugs. This review includes various solventless coating methods like magnetic assisted impaction coating , hotmelt coating, supercritical fluid spray coating, electrostatic coating, dry powder coating, and photocurable coating that can be used to coat the pharmaceutical dosage forms.


2009 ◽  
Vol 6 (s1) ◽  
pp. S59-S64 ◽  
Author(s):  
Prafulla Kumar Sahu ◽  
M. Mathrusri Annapurna

RP-HPLC analytical method for the estimation of nabumetone in pharmaceutical dosage forms was developed and validated. A Hypersil ODS C18, 4.6 mm x 250 mm, 5 μm column from Supelco (India), with mobile phase comprised of acetonitrile: triple distilled water (50:50) with a total run time of 18 min was used and the wavelength of the detector was set at 230 nm. Stavudin is used as internal standard. The retention times were 14.167 min and 1.967 min for nabumetone and stavudin (IS) respectively. The extraction recovery of nabumetone from pharmaceutical dosage form (tablets) was >101% and the calibration curve was linear (r2= 0.995) over nabumetone concentrations ranging from 1 to 200 µg/mL. The method had an accuracy of >99% and LOD and LOQ of 0.17482 µg/mL and 0.5827 µg/mL respectively. The method reported is simple, reliable, precise and accurate and has the capability of being used for determination of nabumetone in bulk and pharmaceutical dosage forms.


Author(s):  
Ritesh Kumar ◽  
Amrish Chandra ◽  
Pawan Kumar Gautam

  Objectives: The purpose of the study is to develop a simple, precise, economical, accurate, reproducible, and sensitive method for the estimation of famotidine (FAM) in bulk and its pharmaceutical dosage forms by ultraviolet (UV) absorption spectrophotometry.Methods: The method uses 0.1 N HCl, pH 1.20 as a solvent for the quantitative estimation of FAM in bulk and its tablets dosage form by UV absorption spectrophotometry.Results: FAM exhibited absorbance maxima at 266 nm in 0.1 N HCl, pH 1.20 solvent. The developed method was validated as per the ICH analytical method validation guidelines. Beer’s law was obeyed in range of 0-30 μg/ml with r2=0.9998. The limit of detection and limit of quantification values of FAM were found to be 0.152 and 0.461 μg/ml, respectively. The mean percentage recovery for developed method was found to be in the range of 99.35-99.48%, respectively, for the marketed dosage forms. The developed method was also found to be robust and ensures bench-top stability.Conclusion: The developed method was found to be suitable for the routine quantitative analysis of FAM in bulk and pharmaceutical dosage form. It was also concluded that developed UV spectrophotometry method was accurate, precise, linear, reproducible, robust, and sensitive.


Author(s):  
Gopi Patel ◽  
Arshad Vohra ◽  
Samir Shah

A simple, precise, accurate and rapid high performance thin layer chromatographic method has been developed and completely validated for the estimation of Valsartan and Sacubitril in pharmaceutical dosage forms. Quantification of Valsartan and Sacubitril were carried out with precoated silica gel aluminum Plate 60 F254, (20 cm ×10 cm) 100 μm thickness as stationary phase. Toluene: Methanol: Ethyl Acetate: Glacial Acetic acid (8:2:1:1 % v/v/v). The optimized chamber saturation time before chromatographic development was 20 min at room temperature (25ºC ± 2). The length of chromatographic run was 8 cm which took average 15 min to develop. Densitometry scanning was performed using Camag TLC scanner IV with Win CATS software (V 1.4.6.2002, Camag). Optimized chromatogram of Valsartan and Sacubitril having Rf of 0.43 and 0.33, respectively. Linear relationship between peak area and concentration of standard was evaluated over the concentration range expressed in ng/band by making five replicate measurements in the concentrations range of 400-1400 ng/band and 4000-14,000 ng/band, respectively for Valsartan and Sacubitril. Literature reveals that there was no any method developed using HPTLC in simultaneous estimation of Valsartan and Sacubitril in their pharmaceutical dosage form. The proposed method can be successfully applied for the estimation of drug content of different marketed formulations.


Author(s):  
V. Pavan Kumar ◽  
C. Bhanu Chandra ◽  
N. Devendra ◽  
M. Kishor Kumar ◽  
S. Reddy Basha ◽  
...  

A simple, rapid and precise method was developed for the quantitative simultaneous determination of Omeprazole and Domperidone in combined pharmaceutical-dosage forms. The method was based on UV-Spectrophotometric determination of two drugs, using simultaneous equation method. It involves absorbance measurement at 291 nm (λmax of Omeprazole) and 289 nm (λmax of Domperidone) in Methanol: Acetonitrile (30:70 v/v). For UV Spectrophotometric method, linearity was obtained in concentration range of 1-15 µg/ml for Domperidone and 1-50 µg/ml for Omeprazole respectively, with regression 0.999 and 0.999 for Domperidone and Omeprazole respectively. Recovery was in the range of 99 -103%; the value of standard deviation and %R.S.D were found to be < 2 %; shows the high precision of the method., in accordance with ICH guidelines. The method has been successively applied to pharmaceutical formulation and was validated according to ICH guidelines.


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