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Important Note

The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Consult your healthcare professional before using this drug.





Cefdinir is a cephalosporin antibiotic used to treat a wide variety of bacterial infections.

How To Use

Take this medication by mouth with or without food, a directed. Antibiotics work best when the amount of medicine in your body is kept at a constant level. Do this by taking the medication at evenly spaced intervals throughout the day and night. Continue to use this medication until the full prescribed amount is finished even if symptoms disappear after a few days. Stopping the medication too early may allow bacteria to continue to grow resulting in a relapse of the infection. Avoid taking antacids containing magnesium or aluminum, sucralfate, iron preparations or vitamin/mineral products within 2 hours of taking this medication. These products may bind with the medicine and prevent its absorption.

Side Effects

Diarrhea or nausea may occur. If these effects persist or worsen, notify your doctor promptly. Report promptly: unusual vaginal discharge/itching. Very unlikely but report promptly: changes in amount or color of urine, stomach pain, persistent sore throat or fever, easy bruising or bleeding, unusual fatigue, seizures. May cause reddish discoloration of stools. This is harmless. In the unlikely event you have an allergic reaction to this drug, seek immediate medical attention. Symptoms of an allergic reaction include: rash, itching, swelling, dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.


Tell your doctor your medical history, including: any allergies (especially to penicillin/cephalosporin antibiotics), bowel disease (colitis), kidney disease. Use of this medication for prolonged or repeated periods may result in a secondary infection (e.g., oral, bladder or vaginal yeast infection). Tell your doctor if you are pregnant before using this drug. In a small test, cefdinir was not shown to be excreted into breast milk. However, other drugs related to cefdinir are excreted into breast milk. Consult your doctor before breast-feeding.

Drug Interactions

Tell your doctor of all nonprescription and prescription medication you may use, especially: gout medication (e.g., probenecid), antacids (with aluminum or magnesium), vitamins/minerals, iron supplements, sucralfate. Though unlikely, this medication may decrease the effectiveness of birth control pills. Consult your doctor or pharmacist about other types of birth control. This drug may interfere with certain laboratory tests. Inform lab personnel you are using this medication. This medication may cause false positive results in tests for sugar in the urine. Diabetics should use TesTape rather than Clinitest tablets to test for sugar when using this medication. Do not start or stop any medicine without doctor or pharmacist approval.


If overdose is suspected, contact your local poison control center or emergency room immediately.


This medication has been prescribed for your current condition only. Do not use it later for another infection or give it to others. A different medication may be needed in those cases.

Missed Dose

If you miss a dose, use it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.


Store at room temperature between 59 and 86 degrees F (15-30 degrees C) away from light and moisture.