Oxolac-LB Capsule is a combination pharmaceutical formulation containing Doxycycline 100 mg and Lactobacillus 5 Billion Spores, designed to provide effective antimicrobial therapy alongside probiotic support. Doxycycline, a broad-spectrum tetracycline antibiotic, acts by inhibiting bacterial protein synthesis, thereby exerting bacteriostatic effects against a wide range of Gram-positive and Gram-negative bacteria. It is commonly indicated for respiratory tract infections, urinary tract infections, skin infections, and certain sexually transmitted diseases. The inclusion of Lactobacillus, a beneficial probiotic strain, helps maintain and restore the natural gut flora balance, which may be disrupted during antibiotic therapy. This synergistic combination aims to reduce the risk of antibiotic-associated diarrhea and other gastrointestinal disturbances by promoting intestinal health and enhancing immune function. Oxolac-LB Capsule should be administered as prescribed by a healthcare professional, with adherence to dosage and duration to minimize resistance development and optimize therapeutic outcomes. Caution is advised in patients with hypersensitivity to tetracyclines, pregnant or lactating women, and those with hepatic or renal impairment. Common side effects may include gastrointestinal discomfort, photosensitivity, and allergic reactions. Overall, Oxolac-LB Capsule offers a comprehensive approach to infection management by combining antimicrobial efficacy with probiotic protection.