Doxycycline monohydrate 100 mg is a broad-spectrum antibiotic used to treat a wide range of bacterial infections, from respiratory and urinary tract infections to sexually transmitted infections, acne, and tick-borne diseases like Lyme disease and Rocky Mountain spotted fever. Doxycycline is a tetracycline antibiotic that inhibits bacterial growth and is thought to have anti-inflammatory effects. Doxycycline is used for bacterial infections, including acne, rosacea, urinary and respiratory tract infections, eye infections, gum disease, gonorrhea, chlamydia, and syphilis. However, dosing doxycycline correctly is crucial to ensure the best outcomes and minimize side effects. This guide breaks down typical dosages, how to adjust doses for different conditions, and what to do if you miss a dose. To reduce the development of drug-resistant bacteria and maintain the effectiveness of doxycycline tablets and other antibacterial drugs, doxycycline tablets should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. Monodox (doxycycline monohydrate) is a tetracycline antibiotic used to treat many different bacterial infections, such as urinary tract infections, acne, gonorrhea, and chlamydia, periodontitis (gum disease), and others. Doxycycline is used to treat bacterial infections in many different parts of the body. It is also used to treat pimples and abscesses (usually on the face) that are caused by rosacea, also known as acne rosacea or adult acne. Doxycycline has been shown to be active against most strains of the following microorganisms, both in vitro and in clinical infections as described in the INDICATIONS AND USAGE section. Know what Doxycycline Monohydrate is used for, how to take it, and which side effects to expect when starting it. Find patient medical information for Doxycycline on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Learn about doxycycline monohydrate usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives.