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Amoxicillin

What is Amoxicillin?

Amoxicillin 500 mg capsules and Amoxicillin 3g sachets are effective clinical drugs used to treat infections.

Amoxicillin is used to treat bacterial infection such as an abscess. Amoxicillin belongs to a group of medicines called penicillin which are used to treat stomach ulcers caused by Helicobacter pylori and severe infections including dental infections, infections of the ear (acute otitis media), tonsillitis, Lyme disease, chest infections, urinary tract infections and community-acquired pneumonia.

Amoxicillin is also called by the brand name Amoxil.

For further information on Amoxicillin Capsules and Sachets, please see the Patient Information Leaflets.

How it works

Amoxicillin works by fighting and decreasing the growth of bacteria in an abscess and infections. The penicillin kills and diminishes infections caused by bacteria. It does this by blocking the production of a protein and stopping the growth of bacteria by interfering with the ability of a cell to form cell walls.

Amoxicillin will begin to work right away after you start taking it. You may not notice a difference in the size of an abscess until the second or third day of treatment.

Before you take it

Most adults and children can take Amoxicillin.

Amoxicillin is unsuitable for people who have an allergy to penicillin or Amoxicillin antibiotics. If you have had a serious allergic reaction related to any ingredient in this drug, do not use this treatment unless your doctor tells you to.

It is also recommended that you do not take this medicine if you have liver or kidney damage, have had, or are recently going to have, any vaccinations prescribed medicine is not to be shared with other people.

Amoxicillin is unsuitable for some patients. You should speak to your doctor or healthcare professional if any of the following apply:

  • You are having urine tests or blood tests from liver function
  • Have kidney problems
  • Are not urinating properly
  • Are having oestriol tests
  • Have glandular fever
  • Have allergen hypersensitivity
  • Regularly drink more than the recommended maximum amount of 14 units of alcohol per week

It is also recommended that you do not take Amoxicillin if you are taking any other medicines such as allopurinol, probenecid, medicine to prevent blood clots, methotrexate or If you are taking other antibiotics such as tetracycline. They may interfere with the effectiveness of Amoxicillin and may produce potentially harmful side effects.

Dosage Instructions

Always take this medication exactly as your doctor or pharmacist has prescribed. Take Amoxicillin caplets through oral administration whole with water and avoid breaking them; they are not a chewable tablet. Space each dose out evenly throughout the day in increments of at least 4 hours. Amoxicillin can be taken either with or without food. You can drink alcohol in moderation while taking Amoxicillin.

For Amoxicillin sachets, pour the content of the sachet in 10 to 20 ml of water. Shake until mixed and take immediately. Space the doses evenly throughout the day, usually at least 4 hours apart.

Children weighing less than 40kg are to be given 40mg to 90mg per day for each kilogram of body weight into two or three divided doses. The maximum dose is 100mg for each kilogram of body weight.

For adults, the elderly, and children weighing over 40 kg, the usual dose of Amoxicillin is 250mg to 500mg three times a day, or, 750mg to 1g twice daily, 1 every 12 hours. This depends on the severity and type of infection. Always contact your doctor first before taking any antibiotical medicine to make sure you are taking the right dose for the severity of the abscess.

For your own health and safety, make sure you carry on taking this medicine until you’ve completed the course, even if you feel better. If you decide not to continue the entire prescription, there is an increased risk of the infection coming back. Ask your pharmacist or doctor before stopping treatment early.

If symptoms do not improve, do not take multiple doses of Amoxicillin in one go or self-administer a higher dose that is not controlled by your doctor. Do not use for longer than directed. If you do not start to feel better or symptoms do not subside within the prescribed time period, ask your doctor for advice for a more suitable antibiotic solution.

Common Side Effects of Amoxicillin

Amoxicillin may cause side effects. These are usually mild to moderate in nature and will generally go away on their own as your body gets used to the medication. If you are concerned by any of these side effects, or they persist, consult your doctor. They may include:

  • Headache
  • Diarrhoea
  • Nausea and sickness
  • Drowsiness or lethargy

In case of serious side effects, stop taking treatment and call a doctor for symptoms such as:

  • Dizziness
  • Difficulty breathing
  • Watery or bloody diarrhoea
  • Blurred or double vision
  • Slow or slurred speech

It is possible that you are allergic to some of the ingredients in this medication. Please tell your doctor at once if you show signs of an allergic reaction such as:

  • Skin rash
  • Breathing problems
  • Inflammation of the legs, arms, face, lips, throat, or tongue
  • Increased heart rate
  • Confusion or anxiety

Amoxicillin shouldn’t affect your ability to drive or operate heavy machinery when using this medication.



Frequently Asked Questions (FAQs)


Is Amoxicillin suitable for children?

Yes. Amoxicillin is suitable for children, usually at a reduced dose. However, we do not prescribe medication for anyone under 18.

I’m pregnant. Can I take Amoxicillin?

Yes. Amoxicillin can be prescribed during pregnancy and to breastfeeding women. Talk to your doctor first before taking any antibiotic.

Do I need a prescription?

Yes. Both Amoxicillin tablets and Amoxicillin sachets are only available on prescription. However, we can prescribe one to you after an online assessment.

What happens if I miss a dose?

If you forget to take a dose at the right time, take your usual amount straight away as soon as you remember. If it is almost time for your next dose, skip the missed dose. It is recommended to take only your single prescribed amount as instructed and do not double dose. Always leave a minimum of 4 hours between doses.

What happens if I take too much?

Take Amoxicillin only as directed by your prescriber and do not share treatment. Taking an extra dose is unlikely to harm you or your child. Call your doctor if you suspect yourself or anyone else has taken more than 1 extra dose and are worried.

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Dosage Instructions Please see medicine label for the dosage instructions.