VIALS

 Vials : vials are glass or plastic containers, which are closed with a rubber stopper and sealed with an aluminium crimp.They’re used to store medicines in liquid form, and they can even store powders or tablets.

Types :

Advantages of Vials:

• It can be designed to hold multiple doses (if it is formulated with a bacteriostatic agent) and the removal of the product is easier.      
• The contamination of the product with the glass particles during the process of opening gets eliminated with the use of vials.

Disadvantages of Vials:

• Vials have certain drawbacks such as coring of rubber stopper, microbial contamination may occur due to multiple withdrawals.                                       
• It is greater initial device cost.

Use:

• Vials are designated for single-dose or multi-dose use. ( multi-dose-preservative )
• They used to store medication in the form of liquids, powders, or capsules.
• They can also be used as scientific sample vessels; for instance, in autosampler devices in analytical chromatography.