Cefaclor Side Effects – Causes and Effects


Category: Bacterial Infections

Drug Name: Cefaclor

General Usage: To Treat Certain Bacterial Infections

Brief Info about Cefaclor in Drug:


This drug is available under a specific brand name called as Raniclor.

Cefaclor kills sensitive bacteria while it is growing by interfering with the formation of bacteria’s cell wall & thus makes bacteria’s cell wall weak & it ruptures resulting in the death of bacteria. Cefaclor is a cephalosporin antibiotic

This medicine is used to cure certain bacterial infections.

Cefaclor Side Effects Explained Better:

Actually, there are at least two sides to every question, in the same manner a drug has 2 outcome, one is positive (desired effects) & second is negative (adverse effects).  Side effects may vary for each person depending on the age, gender, general health, disease state & ethnicity. Adverse effects may or may not be detrimental to your body. People may notice side effects due to overdose, prolonged use of drugs & drug interaction besides frequent & infrequent side effects.

Frequent Cefaclor Side Effects (Commonly Seen)-

Common side effects caused by Cefaclor & Cefaclor Extended-Release Tablets are as follows-

  • Nausea
  • Mild diarrhea
  • Vomiting
  • Sinus infection
  • Headache
  • Tiredness

Common side effects caused by Cefaclor Capsules & Cefaclor Suspension may include-

  • Anal itching
  • Difficulty breathing
  • Abnormal skin sensations
  • Headache
  • Fluid retention
  • Flushing
  • Fainting
  • Mild diarrhea
  • Nausea
  • Sinus infection
  • Inflammation and joint pain
  • Tiredness
  • Secondary fungal infections, particularly of the vaginal, oral, intestinal, and rectal areas
  • Low blood pressure
  • Skin redness
  • Weakness
  • Vomiting

If these side effects continue for a long time, do not close your eyes to them & seek medical attention at the earliest.

Infrequent Cefaclor Side Effects (Professional Point of View)-

 Not all but few infrequent side effects are listed below-

  • Signs of allergic reactions-
    • Hives
    • Itching
    • Difficulty breathing
    • Swelling of the mouth, face, lips, or tongue
    • Rash
    • Tightness in the chest
  • Vaginal discharge or irritation
  • Fever
  • Seizures
  • Stomach cramps/pain
  • Bloody stools
  • Severe diarrhea
  • Urge to have a bowel movement

If you perceive any of these above-mentioned side effects, seek medical aid right away before the situation becomes bothersome.


Cefaclor Overdose Side Effects (Require Immediate Medical Attention)-

Symptoms may include-

  • Diarrhea
  • Nausea
  • Stomach pain
  • Vomiting

As you notice the symptoms of overdose, contact your emergency room or local PCC (Poison Control Centre) at once.

Cefaclor Drug Interaction Side Effects (Due to Reaction with Other drugs)-

This is not the complete list of all drugs that may interact with Cefaclor . You must inform your pharmacist or doctor before taking any over the counter medications including mineral, vitamins or herbal products etc. & prescribed medicines as well.  Some of them are listed below-

  • Probenecid- it may increase the side effects and actions of Cefaclor
  • Oral anticoagulants (such as- warfarin)- side effects like risk of bleeding may be increased by Cefaclor.

Cefaclor Prolonged Use Side Effects (When Used for Longer Periods)-

If a medicine is used for a long time, it will affect our body system for sure. Well, no side effects have been seen so far but it does not mean they cannot be appeared. You should visit your doctor regularly & follow his/her directions like when to increase or decrease the dose of a medicine or start & halt taking this drug.