What side effects may I notice from receiving Cefaclor ?

Side effects that you should report to your doctor or health care professional as soon as possible:

-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-breathing problems
-dizziness
-fever or chills
-redness, blistering, peeling or loosening of the skin, including inside the mouth
-seizures
-severe or watery diarrhea
-stomach pain or cramps
-sore throat
-swollen joints
-trouble passing urine or change in the amount of urine
-unusual bleeding or bruising
-unusually weak or tired

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

-gas or heartburn
-headache
-nausea, vomiting

This list may not describe all possible side effects for Cefaclor . Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.