NHS information about the medicine doxycycline, including what it's used for, who can take it, how to take it and side effects. Doxycycline is an antibiotic that is commonly used to prevent malaria, improve tooth attachment and reduce gum pockets in people who have a dental procedure called scaling and root planing for. Learn about the side effects of doxycycline, from common to rare, for consumers and healthcare professionals. Read on to learn about the common and rare side effects of doxycycline and how to manage them. 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 oral tablets are used to treat bacterial infections and severe acne, and to prevent malaria. Learn about its side effects, warnings, dosage, and more. Doxycycline is used for bacterial infections, including acne, rosacea, urinary and respiratory tract infections, eye infections, gum disease, gonorrhea, chlamydia, and syphilis. Doxycycline can also be used to prevent malaria and treat infections caused by mites, ticks, or lice. Doxycycline 100mg Capsules - Patient Information Leaflet (PIL) by Sovereign Medical For patients with mild symptoms, doxycycline is the drug of choice (100 mg orally, twice daily), if not contraindicated. Garner SE, Eady A, Bennett C, Newton JN, Thomas K, Popescu CM, et al. (Cochrane Skin Group) (August 2012). Typical adult doses range from 100 mg once or twice daily, with adjustments for children and special conditions. It is important to follow prescribed dosing schedules to avoid resistance and side effects.