How are powders dispensed?

Oral powders may be dispensed in doses premeasured by the pharmacist, i.e., divided powders, or in bulk. Traditionally, divided powders have been wrapped in materials such as bond paper and parchment.

How are the powders administered?

They are generally administered in or with water or another suitable liquid, or they may also be swallowed directly. They are presented as single-dose or multidose preparations in suitable containers. Multidose oral powders are packed into a suitable bulk container, such as a wide-mouthed glass jar.

In which container dusting powders are dispensed?

sifter-top containers
The dusting powders are dispensed in sifter-top containers or aerosol containers. The pressure aerosol containers are costlier than the sifter –top containers but they help in the easy application of the preparation. Dusting powders may also be applied with powder puff or sterilized gauze pad.

How are bulk powder dispensed?

Bulk powders for external use Bulk powders for external used are of four types. These are used externally for local application not intended for systemic action. If desired, powders should be micronised or passed through a sieve # 80 or 100. Dusting powders should preferably be dispensed in sifter-top containers.

Why potent drugs are dispensed as divided powders?

PHARMACEUTICAL POWDERS  The divided powder is a more accurate dosage form than bulk powder because the patient is not involved in measurement of the dose.  Cellophane and foil-enclosed powders are better protected from the external environment until the time of administration than paper-enclosed powders.

What are the disadvantages of powders?

Disadvantages of powders

Powders are not the dosage form of choice for drugs with unpleasant taste.
Drugs that deteriorate rapidly with exposure to atmosphere or acidic pH should not be dispensed as powders.
Powders are bulky and inconvenient to carry.

What is the best container for bulk powder?

Polyethylene – Plastic container: storage of raw ingredients, powders and bulk materials. Storage, packing and transport of food grade materials.

What is the purpose of divided powder?

Divided powders or charts are single doses of powdered medicinals individually wrapped in cellophane, metallic foil, or paper. The divided powder is a more accurate dosage form than bulk powder because the patient is not involved in measurement of the dose.

Which powder is used externally?

Topical powders also known as powders for cutaneous application or powders for external use are preparations consisting of solid, loose, dry particles of varying degrees of fineness. They contain one or more active substances, with or without excipients and, if necessary, appropriate coloring matter.

What are the advantages of powders over tablets?

They are measured to an exact strength and are generally easy to swallow. Powders, on the other hand, are more concentrated and are therefore recommended when large amounts of nutrients are needed. Powders are also more economical and are easy to take for people who have trouble swallowing tablets.

How does a powder transfer system work?

The PTS is a pneumatic conveying system using both vacuum and pressure without relying on gravity allowing to move powders as if they were liquid eliminating the need for multi floor processes. The system is ideal for transferring highly explosive powders and the transfer of toxic and hygroscopic materials.

What are the advantages and disadvantages of powder?

 Powders are more economical as compared with other dosage form because not required any special machinery or technique.  Powders are more easy to carry than the liquid dosage form. 4. Disadvantages of Powders  Drugs having bitter, nauseous & unpleasant taste cannot be dispensed in powdered form.

How are bulk powders used for external use?

Bulk powders for external use External bulk powders contain non-potent substances for external applications. These powders are dispensed in glass, plastic wide mouth bottles and also in cardboard with specific method of application. Bulk powders for external used are of four types.

What kind of container do you use for foot powder?

Dusting powders should preferably be dispensed in sifter-top containers. Such containers provide the protection from air, moisture and contamination as well as convenience of application. Currently some foot powders and talcum powders have been marketed as pressure aerosols.

How are simple powders used for internal use?

15. Simple & Compound Powders for Internal Use  SIMPLE POWDER: – In simple powder contains only one ingredient either in crystalline form or amorphous form. – If powder present in crystalline form then it is reduced to fine powder, weighed the powder & divided into number of doses & wrapped as individual dose.

What kind of powder is used for substanc es?

These are powders used for less potent drugs. These are powders supplied in bulk or large quantities. They are intended for internal or external use. They are non-potent substanc es such as antacid. The y are can easily remove the powder.

Which is the most common type of container?

This container type relies on external power to keep the temperature regulated. Reefers generally come in 20’ and 40, and are commonly made from a weathering steel known as ‘Cor-ten’ steel. Like the ISO Reefer container, an insulated or thermal container has a regulated temperature control that allows them to withstand a higher temperature.

What kind of powder is best for dispensing?

Dispensing of Powders Involving Special Problems  Volatile Substances: – Certain vegetable powder contains volatile oil. – To prevent the loss of volatile oils, these vegetable drugs must be powdered lightly in a mortar. – Also, menthol, camphor & essential oils takes place incorporation in powder.

What kind of packaging is used in thermoforming?

Plastics that are used in the thermoforming process are called thermoplastics. Thermoformed products include plastic containers, such as meat trays, egg trays, disposable food containers and blister packaging. Tin cans are one of the most common packaging solutions that can hold diverse contents.