Hdox LB 100mg Capsule is a combination pharmaceutical formulation containing Doxycycline 100mg, a broad-spectrum tetracycline antibiotic, and Lactobacillus 5 billion spores, a probiotic agent. Doxycycline acts by inhibiting bacterial protein synthesis, thereby exhibiting bacteriostatic activity against a wide range of gram-positive and gram-negative pathogens, including atypical organisms. It is commonly prescribed for respiratory tract infections, urinary tract infections, skin infections, and certain sexually transmitted infections. The inclusion of Lactobacillus spores aims to restore and maintain the natural gut flora, which may be disrupted during antibiotic therapy, thereby reducing the risk of antibiotic-associated diarrhea and other gastrointestinal disturbances. Hdox LB is indicated for the treatment of bacterial infections where doxycycline is appropriate, with the added benefit of probiotic support to enhance gastrointestinal health. The capsule should be taken orally with adequate water, preferably on an empty stomach to optimize absorption, unless otherwise directed by a healthcare professional. Use is contraindicated in patients with known hypersensitivity to doxycycline or other tetracyclines, and caution is advised in pregnant or lactating women. As with all antibiotics, it is essential to complete the prescribed course to prevent resistance development. Consultation with a healthcare provider is recommended before initiating therapy.