Amoxicillin 500mg Capsule
Reviewed educational reference: what this medicine is used for, how it works, its side effects and safety advice — plus the published Indian brands that contain it.
- Molecule
- Amoxicillin
- Strength
- 500mg
- Dosage form
- capsule
- Drug class
- Penicillin antibiotic
Amoxicillin 500mg Capsule contains Amoxicillin, a penicillin-class antibiotic used to treat a wide range of bacterial infections, including infections of the ear, nose, throat, chest, urinary tract, skin and teeth. It works only against bacteria — it has no effect on viral illnesses such as the common cold or flu.
Uses of Amoxicillin
- Ear, nose and throat infections (otitis media, sinusitis, tonsillitis)
- Chest infections (bronchitis, community-acquired pneumonia)
- Urinary tract infections
- Skin and soft-tissue infections
- Dental infections and abscesses
- Part of combination therapy for H. pylori stomach infection
Benefits of Amoxicillin
Clears bacterial infection: Amoxicillin 500mg Capsule kills the bacteria causing the infection, so symptoms such as fever, pain and swelling settle as the infection resolves — most people start feeling better within 2 to 3 days, though the full course is still essential.
Side effects of Amoxicillin
Common side effects include nausea, diarrhoea and skin rash.
- Seek emergency help for signs of a severe allergic reaction: hives, swelling of the face, lips or throat, or difficulty breathing.
- Contact a doctor for severe or persistent watery diarrhoea during or after the course (possible C. difficile infection), or for white patches in the mouth (thrush).
How to use Amoxicillin
- Take it at evenly spaced times, exactly as prescribed (usually every 8 or 12 hours).
- It can be taken with or without food; taking it with food reduces stomach upset.
- Complete the full course even if you feel better after a few days — stopping early lets the infection return and breeds antibiotic resistance.
How Amoxicillin works
Amoxicillin 500mg Capsule is bactericidal: it binds to penicillin-binding proteins and blocks the construction of the bacterial cell wall. Without an intact wall the bacteria burst and die, clearing the infection.
What if you miss or exceed a dose?
If you miss a dose
Take the missed dose as soon as you remember, then continue with evenly spaced doses. If it is nearly time for the next dose, skip the missed one — do not take a double dose.
In case of overdose
Overdose may cause nausea, vomiting, diarrhoea and, rarely, kidney effects (crystals in the urine). Drink water and seek medical advice if a significant overdose is suspected.
Safety advice
No direct interaction, but alcohol can worsen nausea and slow recovery — best avoided during treatment.
Generally considered safe in pregnancy when prescribed by a doctor.
Considered compatible with breastfeeding; watch the baby for loose stools or rash.
Does not usually affect the ability to drive.
Dose or dosing interval may need adjustment in significant kidney disease.
No routine dose change needed; tell your doctor about existing liver disease.
Quick tips
- Never use leftover antibiotics or share them — the wrong antibiotic makes future infections harder to treat.
- Tell your doctor before starting if you have ever had an allergic reaction to any penicillin or cephalosporin antibiotic.
- Taking a probiotic or curd/yoghurt may ease mild antibiotic-associated diarrhoea; ask your pharmacist.
- If there is no improvement after 3 days, go back to your doctor.
Interactions with other medicines
- Allopurinol: increases the chance of skin rash.
- Methotrexate: Amoxicillin 500mg Capsule can raise methotrexate levels and toxicity.
- Warfarin: may enhance the blood-thinning effect; INR monitoring advised.
- Probenecid: raises Amoxicillin 500mg Capsule blood levels (sometimes used intentionally).
- Oral typhoid vaccine: antibiotics can inactivate the live vaccine; separate them as advised.
Fact box
- Chemical class
- Aminopenicillin (beta-lactam)
- Habit forming
- No
- Therapeutic class
- Antibiotic
- Action class
- Bacterial cell-wall synthesis inhibitor
- Storage
- Store below 25°C in a dry place. Keep out of reach of children.
Frequently asked questions about Amoxicillin
Why must I finish the full course?
Symptoms improve before all bacteria are killed. Stopping early lets the hardiest bacteria survive and multiply, so the infection can return in a harder-to-treat, resistant form.
Will Amoxicillin 500mg Capsule cure a cold or the flu?
No. Colds and flu are caused by viruses, and antibiotics have no effect on viruses. Unnecessary use only adds side effects and fuels resistance.
I am allergic to penicillin — can I take Amoxicillin 500mg Capsule?
No. Amoxicillin 500mg Capsule contains Amoxicillin, which is a penicillin. Tell your doctor, who will choose an antibiotic from a different class.
Can I take it on an empty stomach?
Yes, it works with or without food, but taking it with a meal reduces nausea.
Published products containing Amoxicillin
Review and source
- Last reviewed
- 2026-07-28
- Reference
- Open reference ↗
Content is educational and should be checked against the current medicine label and professional guidance.
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