Polymyxin-B-SD029-5x50DS is referred as

Polymyxin-B PB 300 Units discs under Hi Media catalogue. Each pack of

Polymyxin-B-SD029-5x50DS contains 5 vials of 50 discs each. Each filter paper disc of SD029-5x50DS is of 6 mm diameter with printed "PB 300" on centre of each side of the disc. Each Polymyxin-B-SD029-5x50DS disc is saturated with 300 Units Polymyxin B.

Polymyxin B discs are used for antimicrobial susceptibilty test of bacteria using Bauer-Kirby Method. Generally Mueller Hinton Agar (M173/M1084) medium is used for susceptibility test.The susceptibility test is determined on the basis of zone of inhibition. The cultural response can be obeserved after incubating the standard culture at 35-37C for 18 hrs.

Storage and shelf life:It is advised to store the discs always at -20C to +8C after opening. The disc loses its stability at higher temperature (45C).