An article on evaluation of dosage forms. Viscosity measurement: Viscosity is a property of liquids that is directly Higher the .. to be absorbed from a solid dosage form after oral administration, it must first be in solution, and. To conform the requirements of pharmaceutical oral liquids during manufacturing , in-process quality control (IPQC) tests are done as per. at developing oral administrable soft gels (liquid fill). pharmaceutical .. Table No Evaluation parameters of EVG liquid fill formulations.
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Viscosity is one of the important parameters which provide vital information during the optimization of the liquid filling formulation for soft gels.
However, after 3 months, formulations F7, F8, and F9 containing PVP K 30 and antioxidants, a color change pale yellow color was observed, but no precipitation of drug. Nano Sci Nano Technol. They are also used for external application [ 81 – 85 ].
In general, the viscosity of liquid filling formulations for soft gels is in the range of 0. Tolu syrup is preferred in certain cases because of its aromatic odour and flavor [ 39 – 41 ]. The present investigation includes the preparation of liquid filling formulations evaluatipn soft gels using an antihypertensive drug, valsartan VALin order to improve its dissolution properties and thereby its bioavailability.
The solid particles act as disperse phase whereas liquid vehicle acts as the continuous phase. Generally the emulsions for application to the skin are semisolid at room temperature and are considered to be an excellent vehicle.
Liquid preparations meant for oral administration. Suspensions are generally taken orally or by parental route. These are generally used for cleaning the ear, softening the wax and for treating the mild infections [ 71 – 72 ]. The emulsion should have small globule size and must be sterile. The authors are thankful to Aurobindo Pharma Ltd. From the studies, it can be concluded that VAL liquid filling formulations for soft gels were successfully prepared with in vitro orald properties superior when compared to VAL itself.
Glycerin is commonly used as a base it adheres to mucous membrane for a long period and it possesses a sweet taste [ 56 ].
Uniform distribution of active ingredient is very important to achieve dose uniformity. Liquid and semi liquid preparations meant for application to the skin. Evaluation parameters for VAL liquid filling formulations. When a drug is emulsified its rate of penetration through the skin may get reduced. The consistency and viscosity of the filling formulations were related to each other because both were liqkid on the concentration of PVP K The pH of the formulations was about 6.
Oorals, the present investigation was aimed at developing oral administrable soft gel liquid filling pharmaceutical formulations of VAL with improved dissolution properties.
Journal of Pharmaceutics
The drug content was within the acceptable range for all evaluattion indicating uniform distribution of drug, that is, solubilization of VAL in all the formulations. Hence, the selection of appropriate rpm was important in the development of soft gel formulations.
Since these preparations contain potent medications the dose must efaluation measured accurately [ 42 – 45 ]. Cool it and add more of purified water to make the required weight.
Liquid Dosage Forms
The compatibility between the drug and excipients in formulations was confirmed by FTIR spectra. Emulsion in which water is in the dispersed phase whereas oil is in continuous phase. Table of Evalaution Alerts.
Liniment should not be applied to broken skin it may cause excess irritation [ 46 – 48 ]. The percent VAL contents were also within the limits and the stability data was given in Table 3 and shown in Figures 7 and 8. Clarity and color change are the most important characteristic features of liquid filling formulations.
Viscous liquid and oral preparations that are generally prescribed for the relief of cough. All the liquid filling formulations showed good physicochemical properties.
Liquid Dosage Forms
Saturated solution of sucrose in purified water, sweet viscous preparations. The drug is rapidly absorbed after oral administration and median values of 2. Generally they contain antibacterial agents, alcohol, glycerin, sweetening agents, flavouring agents and coloring agents [ 54 – 55 ]. They are available in monophasic and biphasic forms. It was clearly evident that the viscosity and consistency of liquid filling formulations were affected by liqiid of PVP K 30 and PEG Gargles, throat paints, mouth washes, throat paints, mouth washes, eye drops, eye lotions, ear drops, nasal drops, sprays and inhalations.
They contain medicament which have demulcent, sedative or expectorant action. Wool wax, resins, beeswax and soaps formed from divalent bases like calcium, magnesium o zinc are used as an emulsifying agent.
It should be sterile isotonic with lacrymal secretions, buffered and free from foreign particles to avoid irritation to the eye [ 61 – 64 ].
De Matos Jensen, R. August 24, Evaliation The formulations showed no changes in clarity, colour, and precipitation at the end of 3 months. Biphasic liquid dosage forms: All the chemicals and reagents used in the study were of analytical evaluatiob. They are brought in to contact with mucous membrane of the throat and are allowed to remain in contact with it for lf few seconds [ 51 – 53 ].
The soft gel dosage form offers several advantages over other oral solid dosage forms, such as delivering a liquid matrix designed to solubilize and improve the oral bioavailability of a poorly soluble compound as a unit dose solid dosage form, delivering low and ultralow doses of a compound [ 3 ].
August 20, ; Published: They are usually available in concentrated for with direction for dilution with warm water before use. Nasal drops; solutions of drugs that are instilled in to the nose with a dropper.
Aqueous solutions with a pleasant taste and odour used to make clean and deodorize the buccal cavity.
Formulations were prepared using excipients like polyethylene glycol PEGpropylene glycol PGpolyvinylpyrrolidone PVP Kantioxidants, ethanol, and purified water.