Pharmaceutical rubber stoppers possess a set of distinctive characteristics that make them suitable for use in pharmaceutical packaging:

Chemical Resistance: Rubber stoppers are formulated to resist chemical reactions, making them suitable for contact with a wide range of drug formulations. This resistance ensures that the rubber does not degrade when in contact with pharmaceuticals.

Elastomeric Properties: Rubber stoppers exhibit excellent elastomeric properties, allowing them to expand and contract as needed to provide an effective seal. This adaptability ensures a tight closure that helps maintain the medication's integrity.

Sterility: To maintain the highest level of sterility, pharmaceutical rubber stoppers are subjected to rigorous sterilization processes to eliminate the presence of harmful microorganisms.

Low Extractables: These rubber stoppers are engineered to release minimal extractable substances into the drug product, minimizing the risk of chemical interactions that could affect the medication.