Amoxicillin Side Effects




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Amoxicillin Side Effects

Some of the amoxicillin side effects that may occur are frequent and do not require medical treatment. While your body adjusts to the drug, these side effects may fade. Your doctor may also discuss ways to avoid or reduce some of these adverse effects.


  • Abdominal or Stomach cramps or Tenderness
  • Back Pain, Leg Pain, or Stomach pains
  • Black, Tarry Stools
  • Bleeding gums
  • Blistering, Peeling, or Loosening of the skin
  • Bloating
  • Blood in the urine
  • Bloody nose
  • Chest pain
  • Chills
  • Clay-Colored Stools
  • Cough
  • Dark Urine
  • Diarrhea
  • Difficulty in breathing
  • Difficulty in swallowing
  • Dizziness
  • Fast heartbeat
  • Feeling of discomfort
  • Fever
  • General body swelling
  • Headache
  • Heavier menstrual periods
  • Hives or welts
  • Increased thirst
  • Inflammation of the joints
  • Itching
  • Joint or muscle pain
  • Loss of appetite
  • Muscle aches
  • Nausea or vomiting
  • Nosebleeds
  • Pain
  • Pain in the lower back
  • Pain or burning while urinating
  • Painful or difficult urination
  • Pale skin
  • Pinpoint red spots on the skin
  • Rash
  • Red, irritated eyes
  • Redness, soreness, or itching skin
  • Shortness of breath
  • Sore throat
  • Sores, welting, or blisters
  • Swollen, lymph glands
  • Tenderness
  • Tightness in the chest
  • Unpleasant breath odor
  • Unusual bleeding or bruising
  • Unusual tiredness or weakness
  • Unusual weight loss
  • Vomiting of blood
  • Watery or bloody diarrhea
  • Wheezing
  • Yellow eyes or skin

These side effects occur in approximately 1 in 10 people. Keep taking the medicine, but talk to the doctor if these side effects are severe or don't go away:

  • Nausea
  • Diarrhea


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    Serious Side Effects:

    • Diarrhea that contains blood or mucus. If you have severe diarrhea for over 4 days, you immediately seek a doctor.
    • Pale stool with dark urine, yellowing of the skin, or the whites of your eyes
    • Bruising or skin discoloration
    • Joint or muscle pains that come after 2 days of taking the medicine
    • A skin rash with red patches

    Some of these serious side effects can happen up to 2 months after finishing the amoxicillin medication course prescribed by a doctor.


    Serious allergic reaction:

    About 1 out of 15 people experience an allergic reaction to amoxicillin. In many cases, the allergic reaction is mild and can take the form of:

    • Itchy skin rash
    • Coughing
    • Wheezing
    • Mild allergic reactions can usually be treated by taking medications

    Frequently Asked Questions:

    No interaction was found in the amoxicillin and doxycycline combination. This doesn’t mean there will not be any interaction by taking this combination. Anyways, consult your doctor before taking this combination.

    Amoxicillin does not treat viral infections like colds and flu. Do not share this medication with anyone else, even if they experience the same symptoms as you.

    Amoxicillin is used for infections of the urinary tract.


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