Overview of Bacin
What is Bacin? Core Identity and Classification
| Property | Description |
|---|---|
| Active ingredient | Sulphamethoxazole and Trimethoprim |
| Type | Fixed-dose combination product |
| Pharmacological class | Antibiotic (Antimicrobial Agent) |
| Route of administration | Oral, Intravenous |
| Origin | Synthetic |
Bacin is a common trade name for the synthetic antibiotic officially known as Co-trimoxazole, which is defined as a fixed-dose combination product containing two active substances. It belongs to the high-level pharmacological class of Antimicrobial Agents and is formulated to address bacterial pathogens. This combination is strategically used because it integrates two distinct chemical entities to enhance efficacy. The combination of Sulphamethoxazole and Trimethoprim is used for its activity against a wide range of bacterial microorganisms in anti-infective therapy.
Composition: Sulphamethoxazole and Trimethoprim
The efficacy of Bacin relies on the combined action of its two active ingredients: Sulphamethoxazole (SMX) and Trimethoprim (TMP). Sulphamethoxazole is categorized as a sulfonamide antibacterial, while Trimethoprim functions as a dihydrofolate reductase inhibitor; both components are necessary to achieve the desired medicinal outcome. This combination is clinically recognized for its reliable efficacy. The medicine is typically available in forms suitable for oral and intravenous administration, including a standard or double-strength Tablet, an Oral Suspension, and a sterile Intravenous Solution. The synergistic effect of the combination is critical to its therapeutic profile.
General Purpose and Synergistic Action
The general purpose of Bacin is to counter and neutralize bacterial growth through a highly efficient, synergistic anti-folate mechanism. This means the combined effect of Sulphamethoxazole and Trimethoprim is more powerful than the effect of either ingredient used alone, a principle in antimicrobial pharmacology. The substances cooperate to execute a dual-action blockade, simultaneously interrupting two critical, consecutive steps in the bacteria's process of producing essential genetic building blocks needed for multiplication. This strategy underpins its utility as an anti-infective agent by shutting down the mechanisms required for the microorganisms to sustain and spread infection.
Regulatory References

