Pharmaceutical Dosage Forms: Liquid Dosage Forms & Syrup Preparation

Flashcards for Practical Pharmaceutical Dosage Forms Lab 1 covering liquid dosage forms, simple syrup specifications, syrup components, and Potassium Citrate Mixture BP.

Drugs

Chemical substances that interact with biological systems to produce a therapeutic effect.

Excipients

Non-medicinal pharmaceutical agents combined with active drug substances in a formulation to generate specific dosage forms.

Drug Dosage Forms

The physical forms in which a drug substance is produced and administered to a patient.

Liquid Dosage Form

A pharmaceutical formulation in which the active drug is dissolved (solution), suspended (suspension), or emulsified (emulsion) in a suitable liquid medium.

Solution (Pharmaceutical)

A liquid preparation containing one or more chemical substances dissolved in a suitable solvent or mixture of mutually miscible solvents.

Syrups

Concentrated aqueous preparations of a sugar or sugar substitute with or without flavoring agents and medicinal substances.

Simple Syrups

Saturated sugar solutions containing only sucrose and purified water without added flavorings or medicinal substances.

Simple Syrup Concentration (B.P.)

Concentration of simple syrup specified as $67.7\%\text{ W/W}$ according to the British Pharmacopoeia.

Simple Syrup Concentration (USP)

Concentration of simple syrup specified as $85\%\text{ W/V}$ according to the United States Pharmacopeia.

Non-Medicated Syrups

Syrups containing flavoring agents but no medicinal substances, which serve as pleasant-tasting vehicles for medicinal preparations (e.g., Cocoa syrup, Orange syrup, Raspberry syrup).

Medicated Syrups

Syrups containing active medicinal ingredients designed to treat specific ailments such as coughs, allergies, or digestive issues.

Sugar Sweeteners

Carbohydrate sweeteners derived from plants or natural sources that provide energy to the body, such as sucrose and sorbitol.

Non-Sugar Sweeteners

Artificial or natural substances that provide sweetness without adding calories or carbohydrates, such as aspartame and sucralose.

Antimicrobial Preservatives (Syrups)

Additives used to protect syrups against microbial growth, such as benzoic acid ($0.1\text{ to }0.2\%$), sodium benzoate ($0.1\text{ to }0.2\%$), parabens ($0.1\%$), or alcohol ($15\text{ to }20\%$).

Colorants (Syrups)

Ingredients added to impart a distinctive appearance, identify formulations, improve patient acceptability, and protect light-sensitive active ingredients from degradation.

Potassium Citrate (in Potassium Citrate Mixture BP)

Active Pharmaceutical Ingredient (API) added at $30\,g$ per $100\,mL$, acting as a urinary alkalinizing agent to relieve symptoms of cystitis and minor UTIs.

Citric Acid Monohydrate (in Potassium Citrate Mixture BP)

Buffering agent present at $5\,g$ per $100\,mL$ that helps maintain the desired acidity level in the formulation.

Lemon Spirit

Flavorant added at $0.5\,mL$ per $100\,mL$ to provide taste in Potassium Citrate Mixture BP.

Tween 80

An emulsifying agent added at $1\,mL$ per $100\,mL$ in the preparation of Potassium Citrate Mixture BP.

Double-Strength Chloroform Water

Preservative component used at $30\,mL$ per $100\,mL$ in Potassium Citrate Mixture BP.

Simple Admixture

A preparation technique in which syrup is prepared separately and then mixed with other ingredients or solutions.