Powders route of administration part 2

• Nasal powders: 

1. We knew before that the nose contains many capillaries that enhance the absorption of drugs and speed up the process, so it is the largest bioavailability compared to other methods of administration.
2. Doses are given by means of mechanisms dedicated to the flow of powders into the nasal cavity in order to be able to reach the most accurate and sensing capillaries. 
3. Materials must be taken with powder, as giving the drug pure without excipients leads to accumulation and agglomeration of the active substance without spreading, so it is given with an inert substance such as lactose to disperse and release the drug over a larger area of ​​the capillaries .

• Topical powders:

1.  This type of powder is given for skin problems, such as antibacterial and antifungal powder, and it is either mixed with another active ingredient or moisturizing or cosmetic materials, it can be given to provide smoothness, color change, and so on... not on the condition that it is alone .

• Dust powders: 

1. This is a soft, sensitive powder that is placed in specific glass tubes and pierced accurately soThis powder can be used as a lubricant because it is very small in size and somewhat uniform in shape, so it rolls easily like starch or talc powders. that this powder spreads over certain areas and not others. Not all skin types respond to this fine powder.
2. This powder can be used as a lubricant because it is very small in size and somewhat uniform in shape, so it rolls easily like starch or talc powders.
3. It must be ensured that the materials are clean and free of any materials that may cause formality, and that is done by sterile methods suitable for talc or starch. When mixing before or after? 
4. Talc may be contaminated by very microorganisms, causing gangrene, or fungi and minute spores that transmit the disease from and to, for the reason that sterilization is present for you, sterilization is an important element!!

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