Amoxicillin and clavulanic acid tablets are antibiotics used to treat bacterial infections, including those of the ear, lung, sinus, urinary tract and skin. This combination drug is also used to treat certain sexually transmitted diseases, according to MedlinePlus.
MedlinePlus states that amoxicillin is an antibiotic similar to penicillin. Clavulanic acid is an additive that prevents bacteria from destroying the amoxicillin before it is able to do its work. Before taking this medication, inform the doctor of any current medications and any allergies to medications so that she is able to check for possible negative interactions. It is also important for the patient to warn the doctor of a current pregnancy, if the patient intends to become pregnant, or is breastfeeding. A patient must also make the doctor aware of any history of kidney or liver problems, asthma, hay fever, hives or mononucleosis. Taking amoxicillin with clavulanic acid sometimes decreases the effectiveness of oral contraceptives, so plan to use a backup method of birth control.
MedlinePlus advises that amoxicillin and clavulanic acid tablets are taken exactly as directed by a doctor. Stopping this medication too early encourages the bacteria to become resistant to antibiotics. Amoxicillin and clavulanic acid sometimes cause side effects such as diarrhea, upset stomach, vomiting and mild skin rash. Severe side effects warrant an immediate call to the doctor and include severe skin rash, hives, itching, difficulty breathing or swallowing, wheezing, yellowing of the skin or eyes, and vaginal itching and discharge.