Group A+C+W+Y Meningococcal Polysaccharide Vaccine

The vaccine is a preparation of purified capsular polysaccharide antigens extracted from the culture of N. meningitidis of serogroups A, C, Y and W135, and lyophilized after the addition of lactose as a stabilizer. The final product looks like a white crisp cake. After reconstitution it shall turn into a clear liquid.

It is presented in a glass vial together with a separate vial of diluent used for the reconstitution of product. The 0.60 ml vial of diluent (PBS) contains sterile, preservative-free, pyrogen-free water for injection. Each 0.5 ml dose of reconstituted vaccine contains 50 µg of each of the polysaccharide of groups A, C, Y, and W135. The vaccine when reconstituted is a clear colorless liquid. Each dose of vaccine also contains 2.5 mg to 10 mg of lactose added as a stabilizer.