» Ampicillin and Probenecid for Oral Suspension contains an amount of Ampicillin (as the trihydrate) equivalent to not less than 90.0 percent and not more than 120.0 percent of the labeled amount of ampicillin (C₁₆H₁₉N₃O₄S) and not less than 90.0 percent and not more than 110.0 percent of the labeled amount of probenecid (C₁₃H₁₉NO₄S). It contains one or more suitable colors, flavors, and suspending agents.