Pharmaceutical Dosage Forms - Mixtures, Elixirs, Syrups

These flashcards cover key concepts and definitions related to pharmaceutical dosage forms, specifically focusing on mixtures, elixirs, and syrups.

What is a mixture in pharmaceutical dosage forms?

A liquid preparation containing dissolved (monophasic) or suspended (biphasic) drugs in a suitable vehicle, typically administered in multiple doses.

What are the components of a mixture?

Medicaments, adjuncts, and vehicles.

What are the classifications of mixtures?

1. Simple mixture 2. Mixture containing diffusible solids 3. Mixture containing in-diffusible solids 4. Mixture containing precipitate forming liquids 5. Mixture containing colloidal particles.

What is a simple mixture?

A mixture that contains only soluble ingredients.

Give an example of a mixture containing diffusible solids.

Magnesium sulfate mixture (used as a laxative).

What is the method for dispensing mixtures containing in-diffusible solids?

1. Triturate powders with a mortar and pestle 2. Mix with suspending agents 3. Add remaining vehicle 4. Adjust volume 5. Bottle and label.

What are linctuses?

Viscous liquid oral preparations primarily prescribed to relieve cough, containing a high proportion of syrup and glycerol.

What are the typical ingredients of medicated elixirs?

Flavored, hydro-alcoholic liquids containing therapeutic substances, including antihistaminics and sedatives.

How are syrups classified?

1. Simple syrup 2. Flavored syrup 3. Medicated syrup.

What is the function of alcohol in syrups?

Acts as a preservative, solvent for flavors, and helps stabilize medicinal compounds.

What is the benefit of using invert sugar syrup?

Prevents sucrose crystallization, improves the texture of syrups and other sugar-based preparations.