Start studying Semi-solid bases. One partner should prepare bases #1, 3, and 5 while the other prepares #2 and 4. Hydrophilic base emulsion (NRF S.25.)

Semi solid dosage forms 1. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Slide 2: SYLLABUS Semi solid dosage form Definition Types Mechanism of drug penetration Factors influencing Penetration Semi solid bases and their selection General formulation of Semi solids Clear gels manufacturing Procedure, Evaluation and Packaging Prepare 120 g of each of the following five ointments on a w/w basis. SEMI SOLID BASES There are four (4) classes or types of bases on the basis of their physical composition .

Water and aqueous preprations may be incorporated but in small amounts with difficulty. Cabot® Semi-Solid Deck & Siding Stain is a richly pigmented, deep-penetrating, oil-based stain that provides long-lasting beauty and wood protection. Issues such as the need for standardisation of techniques for formulation as well as for assessment of efficacy are highlighted. The efficacy and stability of these phage formulations is discussed, with a focus on selection of optimal semi-solid bases for phage delivery. water soluble or water miscible bases. Semi-solid stains offer better protection and coverage than a semi-transparent stain.

They contain one or more active ingredients dissolved or uniformly dispersed in a suitable base and any suitable excipients such as emulsifiers, viscosity-increasing agents, antimicrobial agents, antioxidants, or stabilizing agents. D. Water-Soluble Bases-no oleaginous components, completely water washable (greaseless), non-occlusive (a) Water soluble component only (b) Gelled Aqueous solutions (gels)-a viscous, semi-solid colloidal system (jellylike)-dispersion of small or large molecules in an aqueous liquid-contains gelling agents forming a 3D solid network Hydrophile Basisemulsion (NRF S.25) Hydrophile Hautemulsions- grundlage (NRF) (konserviert) Info ... Properties involved in base selection for semi-solid dosage forms. Ointments are semi-solid preparations of a drug substance dissolved or dispersed in a semisolid ointment base made of paraffin or other hydrocarbons. By Bob Vila. The selection of preservative for a generic semi-solid product is typically based on the RLD. This unique stain provides greater hiding power than semi-transparent stains, yet its attractive finish highlights the natural beauty of the wood’s texture.

Each type has a different physical characteristic, as well as therapeutic uses, based on the nature of its components. Zinc oxide lotion SR Lotio zinci oxidati SR Hydrophiles Zinkoxid-Liniment 25 % (NRF 11.109.) If you want to see some hint of the natural grain of the wood, a semi-solid is the most pigment you can have before having an opaque finish like a solid stain or paint.

Preparation of Ointment Bases. drug solubility in base, rate of drug release, topical vs. transdermal, patient compliance, intended use. Some grain of the wood is visible but not much as a transparent stain. (kons.) Advantages of Semi-solid Stains . Photo: Flickr. They contain one or more active ingredients dissolved or uniformly dispersed in a suitable base and any suitable excipients such as emulsifiers, viscosity-increasing agents, antimicrobial agents, antioxidants, or stabilizing agents. hydrocarbon, absorption bases, emulsion bases, water-removable bases, water-soluble bases. Info

SEMI-SOLID DOSAGE FORMS OINTMENTS, CREAMS, PASTES & GELS By: Iqra Zulfiqar (Baqai Institute of Pharmaceutical Sciences) 2. A combination of methylparaben and propylparaben is the most commonly used preservative at levels typically ranging from 0.01% to 0.3%. Topical semi-solid dosage forms are normally presented in the form of creams, gels, ointments, or pastes. with a focus on selection of optimal semi-solid bases for phage delivery. Emulsions are somewhat more complex because they consist of two liquid phases, one of which is dispersed within the other, usually oil droplets dispersed in water. TOPICS TO BE COVERED … INDUSTRIAL PROCESSING PREPARATION OF OIL AND AQUEOUS PHASES STORAGE CONDITIONS OF SEMISOLIDS REFERENCE 3. Ointments-Bases A) Oleaginous (hydrocarbon) bases: This is a purified mixture of liquid, semi-solid or solid hydrocarbons from petroleum. Topical semi-solid dosage forms are normally presented in the form of creams, gels, ointments, or pastes. The Basics of Paint Selection Color, finish, quality, and personal taste are important factors in paint selection.

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