What does the abbreviation "DS" in Bactrim DS represent?

The abbreviation "DS" in Bactrim DS stands for "double strength." This designation indicates that the formulation contains a higher concentration of the active ingredients compared to a standard strength formulation. In the case of Bactrim, a common antibiotic combination of sulfamethoxazole and trimethoprim, the double strength version allows patients to receive a more potent dose with fewer tablets, which can improve adherence to the treatment regimen. Understanding these abbreviations is crucial in pharmacy practice, as it directly impacts dosage calculations, patient instructions, and ultimately, the effectiveness of the therapy.