Sugar

In the context of medicine, sugar refers more to its general function as an ingredient rather than a specific medical substance itself. Here's how sugar plays a role in medications:

Excipient:

  • Sugar, most commonly sucrose (table sugar), is often used as an excipient in medications. An excipient is an inactive ingredient added to a medication for various purposes, such as:
    • Bulking agent: Sugar helps add bulk or volume to tablets, capsules, and other dosage forms, especially when the active ingredient itself has a low volume.
    • Binder: It can act as a binder to hold the medication together and maintain its shape.
    • Sweetener: Sugar can improve the palatability of medications, particularly for children or adults who dislike bitter or unpleasant tastes.
    • Other functions: Sugar syrups may also be used for suspending medications in liquids, stabilizing formulations, or extending shelf life.

Medicated Confectionery:

  • Some over-the-counter medications, particularly cough syrups, lozenges, and throat drops, contain sugar as a base ingredient.
  • Here, sugar serves a dual purpose:
    • Delivery system: The sugar base acts as a carrier for the medication, allowing for slow release or targeted delivery in the mouth or throat.
    • Soothing effect: Sugar can have a soothing effect on coughs and sore throats.

Important Considerations:

  • While sugar has its uses in medications, it's important to note that high sugar intake can have negative health consequences.
  • In some cases, sugar-free alternatives may be used in medications for diabetic patients or those on sugar-restricted diets.

Sugar, Confectioner’s

Functional Category

Coating agent; sweetening agent; tablet and capsule diluent.

Applications in Pharmaceutical Formulation

Confectioner’s sugar is used in pharmaceutical formulations when a rapidly dissolving form of sugar is required for flavoring or sweetening. It is used as a diluent in solid-dosage formulations when a small particle size is necessary to achieve content uniformity in blends with finely divided active ingredients. In solutions, at high concentrations (70% w/v), confectioner’s sugar provides increased viscosity along with some preservative effects. Confectioner’s sugar is also used in the preparation of sugar-coating solutions and in wet granulations as a binder/diluent.

Description

Confectioner’s sugar occurs as a sweet-tasting, fine, white, odorless powder.

Stability and Storage Conditions

Confectioner’s sugar is stable in air at moderate temperatures but may caramelize and decompose above 1608C. It is more hygroscopic than granular sucrose. Microbial growth may occur on dry storage if adsorbed moisture is present or in dilute aqueous solutions. Confectioner’s sugar should be stored in a well-closed container in a cool, dry place.
Incompatibilities

Confectioner’s sugar is incompatible with dilute acids, which cause the hydrolysis of sucrose to invert sugar. It is also incompatible with alkaline earth hydroxides, which react with sucrose to form sucrates.

Safety

Confectioner’s sugar is used in confectionery and oral pharmaceutical formulations. It is generally regarded as a relatively nontoxic and nonirritant material. See also Sucrose.

Sugar, Compressible

Functional Category

Sweetening agent; tablet and capsule diluent; tablet filler.

Applications in Pharmaceutical Formulation

Compressible sugar is used primarily in the preparation of directcompression chewable tablets. Its tableting properties can be influenced by changes in moisture level;(1) see Table I for typical uses

Description

Compressible sugar is a free-flowing, sweet-tasting, white powder (or crystalline agglomerates).

Stability and Storage Conditions

Compressible sugar is physically stable at room temperature and low relative humidity. It deliquesces at above 80% relative humidity at 25 C. The bulk material should be stored in a well-closed container in a cool, dry place.

Incompatibilities

Incompatible with dilute acids, which cause hydrolysis of sucrose to invert sugar, and with alkaline earth hydroxides, which react with sucrose to form sucrates.

Safety

Compressible sugar is generally regarded as a relatively nontoxic and nonirritant material. See also Sucrose