Cefdinir capsule belongs to the oral 3rd generation cephalosporins, mainly for gram-negative bacillus infections, with strong antibacterial activity, low toxicity, efficacy and so on, mainly for sinus infections, intrapulmonary infections and periodontal infections effective treatment. The specification of 1 capsule is 50mg, routinely 2 capsules / times, 3 times / day oral, but if there are renal disease, liver disease, as well as the elderly, infants and young patients, the dose should be reduced by half or discretionary reduction. If there is a history of cephalosporin allergy patients, must not take this drug, at the same time oral cefdinir capsules must not drink alcohol.