Tetracycline.

Tetracycline is a prescription drug that you may need to use if you have a bacteria-induced infection and need to get your symptoms under control. The following conditions can be treated when tetracycline is used: infections of skin, Lyme disease, respiratory tract infections, infection that causes stomach ulcers, infection of genital and urinary systems, and sometimes acne. Before taking tetracycline let your doctor know if you have medical conditions requiring a dose adjustment – such as for example kidney disease, hay fever, hives, liver disease, allergies, diabetes, or asthma. Also, report nay medications you are using - antacids, blood thinners, isotretinoin, penicillin antibiotics, minerals, cholesterol-lowering medications, or tretinoin, as interactions are possible unless you are prescribed the right dose. There is no need to worry if you develop changes in skin color, redness of the skin, upset stomach, sore mouth, diarrhea, or itching of the rectum or vagina while using tetracycline. More serious side effects are also possible and can include difficulty breathing, vomiting, blurred vision, itching, skin rash, hives, fever or chills, upset stomach, loss of appetite, stomach pain, jaundice, dark-colored urine, and severe headache.