Tag: Double strength

The abbreviation DS on a medication label, such as for the antibiotic Bactrim DS, designates a 'double strength' tablet, containing exactly twice the concentration of the active pharmaceutical ingredient compared to its regular, or single-strength, counterpart. Understanding the difference between DS and normal tablet formulations is essential for safe and effective medication use, as confusing strengths can lead to serious errors in dosage.

According to the U.S. Food and Drug Administration (FDA), many over-the-counter (OTC) cough medications contain the suppressant Dextromethorphan (often labeled as DM). However, when you see “DS” on a product, especially in the context of cough syrup, it most often signifies “Double Strength,” indicating a higher concentration of active ingredients in each dose.