Doxycycline 100 Mg is categorized as a tetracycline antibiotic, which is a cornerstone in human bacterial infection treatment. Its extensive applicability includes managing various infections, most notably in the respiratory and urinary systems. Interestingly, its use expands beyond these conventional issues to treat skin problems such as acne, a widespread worry, and even specific kinds of sexually transmitted infections (STIs), thus highlighting its wide-ranging capability as an antibiotic.