Active Ingredient

Amoxicillin

Amoxicillin is a commonly prescribed antibiotic that belongs to the penicillin group of drugs. It is used to treat a variety of bacterial infections in the body.

This medication is effective against infections affecting the respiratory tract, urinary tract, skin, and other areas.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Amoxicillin Brands

Novamox

Strengths 250 mg, 500 mg

Cenmox

Strengths 500 mg

Amoxil

Strengths 250mg, 500mg

Trimox

Strengths 250mg, 500mg

Cepmox

Strengths 250mg

Amoxicillin Uses

Amoxicillin is used to treat several types of bacterial infections. It is not effective against viral infections.

Respiratory tract infections
Ear infections
Urinary tract infections
Skin infections
Throat infections

How Amoxicillin Works

Amoxicillin works by inhibiting the growth of bacteria. It does this by interfering with the formation of the bacterial cell wall, which is essential for their survival.

As a penicillin antibiotic, it targets and destroys bacteria, helping to clear the infection from the body.

Common side effects of Amoxicillin

Not everyone experiences side effects from amoxicillin, and many are mild and temporary.

Nausea
Diarrhea
Rash
Vomiting
Stomach upset
Headache

If you experience serious or persistent symptoms, contact your doctor.

Avoid taking amoxicillin if you have a known allergy to penicillin or similar antibiotics.
Inform your doctor of any other medications you are taking to avoid interactions.
Do not consume alcohol heavily while on this medication.
Monitor for signs of an allergic reaction, such as rash or difficulty breathing, and seek medical attention if they occur.
Complete the full course of treatment as prescribed, even if you feel better.

Always consult your doctor for personalized medical advice.

Frequently Asked Questions

What does amoxicillin treat?

Amoxicillin is used to treat a variety of bacterial infections, including those affecting the respiratory tract, urinary tract, and skin.

How long does it take for amoxicillin to work?

Amoxicillin begins to work shortly after taking it, but it may take a few days to notice an improvement in symptoms.

Can I drink alcohol while taking amoxicillin?

It is advised to avoid heavy alcohol consumption while taking amoxicillin, as it may increase side effects or reduce effectiveness.

Are there any foods I should avoid while taking amoxicillin?

There are no specific foods to avoid, but it’s important to maintain a balanced diet to support your recovery.

What should I do if I miss a dose of amoxicillin?

If you miss a dose, take it as soon as you remember. If it’s almost time for your next dose, skip the missed dose and continue with your regular schedule.