Photo: Flickr. Start studying Semi-solid bases. A combination of methylparaben and propylparaben is the most commonly used preservative at levels typically ranging from 0.01% to 0.3%. 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. By Bob Vila. Topical semi-solid dosage forms are normally presented in the form of creams, gels, ointments, or pastes. 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

Issues such as the need for standardisation of techniques for formulation as well as for assessment of efficacy are highlighted. 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.

The selection of preservative for a generic semi-solid product is typically based on the RLD.

SEMI-SOLID DOSAGE FORMS OINTMENTS, CREAMS, PASTES & GELS By: Iqra Zulfiqar (Baqai Institute of Pharmaceutical Sciences) 2. Advantages of Semi-solid Stains . Hydrophile Basisemulsion (NRF S.25) Hydrophile Hautemulsions- grundlage (NRF) (konserviert) Info TOPICS TO BE COVERED … INDUSTRIAL PROCESSING PREPARATION OF OIL AND AQUEOUS PHASES STORAGE CONDITIONS OF SEMISOLIDS REFERENCE 3. Ointments are semi-solid preparations of a drug substance dissolved or dispersed in a semisolid ointment base made of paraffin or other hydrocarbons. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Cabot® Semi-Solid Deck & Siding Stain is a richly pigmented, deep-penetrating, oil-based stain that provides long-lasting beauty and wood protection.

Semi solid dosage forms 1. Hydrophilic base emulsion (NRF S.25.)

(kons.) hydrocarbon, absorption bases, emulsion bases, water-removable bases, water-soluble bases. This unique stain provides greater hiding power than semi-transparent stains, yet its attractive finish highlights the natural beauty of the wood’s texture. drug solubility in base, rate of drug release, topical vs. transdermal, patient compliance, intended use. Semi-solid stains offer better protection and coverage than a semi-transparent stain. Info

Topical semi-solid dosage forms are normally presented in the form of creams, gels, ointments, or pastes. 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.

One partner should prepare bases #1, 3, and 5 while the other prepares #2 and 4. Zinc oxide lotion SR Lotio zinci oxidati SR Hydrophiles Zinkoxid-Liniment 25 % (NRF 11.109.)

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 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. The Basics of Paint Selection Color, finish, quality, and personal taste are important factors in paint selection.

SEMI SOLID BASES There are four (4) classes or types of bases on the basis of their physical composition .

... Properties involved in base selection for semi-solid dosage forms. Each type has a different physical characteristic, as well as therapeutic uses, based on the nature of its components.

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. Prepare 120 g of each of the following five ointments on a w/w basis.

Some grain of the wood is visible but not much as a transparent stain.

Preparation of Ointment Bases. Water and aqueous preprations may be incorporated but in small amounts with difficulty.