Doxycycline Hyclate (Doxycycline Hyclate Delayed-release Tablets ) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Find patient medical information for Doxycycline on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings NHS information about the medicine doxycycline, including what it's used for, who can take it, how to take it and side effects. Know what Doxycycline Hyclate is used for, how to take it, and which side effects to expect when starting it. 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. Learn about doxycycline hyclate usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. 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.