By A. G. Fishburn
Read or Download An Introduction to Pharmaceutical Formulation PDF
Similar general & reference books
This article bargains with the contribution of speedy response options to our figuring out of occasions at the molecular scale in the course of chemical reactions. It covers the advances because of the combo of chemical kinetic and spectroscopic equipment and highlights the data to be got from ultrafast methods lasting a number of picoseconds or much less.
This introductory textbook covers all facets of catalysis. It additionally bridges computational tools, business purposes and eco-friendly chemistry, with over seven-hundred references. the writer, a popular researcher in catalysis, teaches medical writing in addition to chemistry. This makes him the proper individual to put in writing any such textbook.
- Informatics for Materials Science and Engineering. Data-driven Discovery for Accelerated Experimentation and Application
- Peptides chemistry and biology
- Corrosion. Corrosion Control
- Chemistry of Heterocyclic Compounds: The Pyrimidines, Volume 16
- Getting It Right in Science and Medicine: Can Science Progress through Errors? Fallacies and Facts
- Metals and ligand reactivity : an introduction to the organic chemistry of metal complexes
Extra info for An Introduction to Pharmaceutical Formulation
They are used in ointment bases, either as "stiffeners" of fats and oils or as components of a water-in-oil emulsified base. Unlike fats, waxes are not foods and are only occasionally used as excipients in oral preparations. Apart from the true waxes, several products, both natural and synthetic, have been given the same time, notably the paraffin waxes and the higher polyethylene glycols ("Carbowaxes"). 42 AN INTRODUCTION TO PHARMACEUTICAL FORMULATION The main members of the group may thus be classified as follows : Fats Coconut "oil" Theobroma "oil" Suet ,.
1954, for example, contained 2-3 per cent of tragacanth in 20 per cent aqueous glycerin. Thick mucilages, medicated with drugs such as ichthammol or resorcinol, can be used as drying or filmforming applications to the skin. If aqueous tragacanth formulations are to be stored for appreciable periods and do not contain a drug with antimicrobial action, a preservative should be included. P. Starch for pharmaceutical use may be obtained from wheat, maize (corn), rice or potatoes. In addition to its use as a waterabsorbent diluent for dusting powders, advantage may be taken of its property of gelatinizing with hot water to produce a mucilage or jelly.
Chemically, it is a carbohydrate complex yielding galactose on hydrolysis, but physically it resembles gelatin in its ability to form gels at low concentration ; a 1 per cent solution in boiling water yields a stiff jelly on cooling. T h e main uses of agar are as a culture medium in bacteriology and as a bulk laxative in medicine; it has been included in paraffin and phenolphthalein formulations where it acts as an emulsifying agent. P. Category is "Bulk Laxative". C. (1959) Chondrus (Irish Moss) is the seaweed Chondrus Crispus, sunbleached and dried.
An Introduction to Pharmaceutical Formulation by A. G. Fishburn