An antibacterial and antimycobacterial reagent.

• Broad spectrum bacteriostatic with activity against gram negative and gram positive organisms
• Penicillin interferes with the final stage of synthesis of the bacterial cell wall
• Streptomycin, through protein synthesis, inhibits elongation at transpeptidation step; binds to 30S subunit causing misreading
• Common working concentration for Penicillin is 100 U/mL; for Streptomycin: 100 μg/mL