What it's used for
Amoxicillin is an antibacterial drug used to treat various bacterial infections. It is prescribed for upper respiratory tract infections of the ear, nose, and throat, as well as genitourinary tract infections.
Source: U.S. FDA-approved prescribing information (openFDA).
Typical dosing
Adults typically take 750 to 1,750 mg per day in divided doses, while pediatric patients over 3 months take 20 to 45 mg/kg/day in divided doses.
Dosing shown here is the general FDA-labeled range. Your prescribing clinician determines the exact dose, form, and schedule for you — this is not a substitute for medical advice.
Common side effects
The most common adverse reactions observed in clinical trials are diarrhea, rash, vomiting, and nausea.
Covered strengths on the Tab $0 list
Covered at $0 with an active Tab membership when filled at a participating pharmacy nationwide or through mail order. A licensed clinician must prescribe the medication.
Related medications
Other antibiotics & antivirals medications covered at $0 with an active Tab membership.
Amoxicillin cost without insurance
Cash prices for Amoxicillin without insurance vary widely by pharmacy, strength and quantity — the same prescription can cost very different amounts at two pharmacies in the same town. That is the problem a membership solves.
Amoxicillin is on Tab's covered $0 generic list. With an active Tab membership, every covered strength is $0 — not a percentage off, not a coupon that changes month to month — at participating pharmacies nationwide or through mail order. You do not need insurance, and Tab works whether or not you have a health plan.
Tab is a membership, not insurance. Covered medications require a prescription from a licensed clinician.
Amoxicillin dosage and administration
Pediatric Patients aged 3 months to 12 years weighing less than or equal to 40 kg: 90 mg/kg/day divided every 12 hours, administered for 10 days. ( 2 ) 2.1 Important Administration Instructions To minimize the potential for gastrointestinal intolerance, amoxicillin and clavulanate potassium for oral suspension, 600 mg/42.9 mg per 5 mL should be taken at the start of a meal. Absorption of clavulanate potassium may be enhanced when amoxicillin and clavulanate potassium for oral suspension, 600 mg/42.9 mg per 5 mL is administered at the start of a meal.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Your prescribing clinician decides the exact dose, form and schedule for you — this is not medical advice.
Amoxicillin side effects
The following clinically significant adverse reactions are described elsewhere in labeling: Anaphylactic reactions [see Warnings and Precautions (5.1) ] Severe Cutaneous Adverse Reactions (SCAR) [see Warnings and Precautions (5.2) ] Drug-Induced Enterocolitis Syndrome (DIES) [see Warnings and Precautions (5.3) ] Hepatic Dysfunction [see Warnings and Precautions (5.4) ] Clostridioides difficile- Associated Diarrhea (CDAD) [see Warnings and Precautions (5.5) ] Skin Rash in Patients with Mononucleosis [see Warnings and Precautions (5.6) ] The most frequently reported adverse reactions (incidence rate > 4 %) were coughing, vomiting, contact dermatitis (i.e., diaper rash), fever, upper respiratory tract infection, and diarrhea. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Chartwell RX, LLC.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. This is not a complete list. Report side effects to your clinician, and seek care for anything severe or unexpected.
Amoxicillin drug interactions
Coadministration with probenecid is not recommended. ( 7.1 ) Concomitant use of amoxicillin and clavulanate potassium for oral suspension, 600 mg/42.9 mg per 5 mL with oral anticoagulants may increase the prolongation of prothrombin time. ( 7.2 ) Coadministration with allopurinol increases the risk of rash. ( 7.3 ) Amoxicillin and clavulanate potassium for oral suspension, 600 mg/42.9 mg per 5 mL may reduce efficacy of oral contraceptives. ( 7.4 ) 7.1 Probenecid Probenecid decreases the renal tubular secretion of amoxicillin. Concurrent use with amoxicillin and clavulanate potassium for oral suspension, 600 mg/42.9 mg per 5 mL may result in increased and prolonged blood levels of amoxicillin. Coadministration of probenecid is not recommended.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Tell your clinician and pharmacist about every medication, supplement and over-the-counter product you take.
Who should not take amoxicillin
History of a serious hypersensitivity reaction (e.g., anaphylaxis or Stevens-Johnson syndrome) to amoxicillin and clavulanate potassium for oral suspension, 600 mg/42.9 mg per 5 mL or any other beta-lactams (e.g., penicillins or cephalosporins). ( 4.1 ) History of cholestatic jaundice/hepatic dysfunction associated with amoxicillin and clavulanate potassium for oral suspension, 600 mg/42.9 mg per 5 mL. ( 4.2 ) 4.1 Serious Hypersensitivity Reactions Amoxicillin and clavulanate potassium for oral suspension, 600 mg/42.9 mg per 5 mL is contraindicated in patients with a history of serious hypersensitivity reactions (e.g., anaphylaxis or Stevens-Johnson syndrome) to amoxicillin, clavulanate, or to other beta-lactam antibacterial drugs (e.g., penicillins and cephalosporins).
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Whether this medication is appropriate for you is a clinical decision made by your prescribing clinician.
Common questions
Is amoxicillin covered at $0 with Tab?
Yes. Amoxicillin is on Tab's covered $0 generic list — every covered strength is $0 with an active membership, at participating pharmacies nationwide or by mail order.
Do I need insurance to get amoxicillin through Tab?
No. Tab is a membership, not insurance. Covered medications are $0 with an active membership whether or not you have a health plan.
How do I get an amoxicillin prescription with Tab?
Book a video visit with a licensed Tab clinician (unlimited visits are included with membership). If it's clinically appropriate, they send the prescription to your chosen participating pharmacy or by mail order.
How much does amoxicillin cost without insurance?
Without insurance, retail cash prices for amoxicillin vary by pharmacy, strength and quantity. Amoxicillin is on Tab's covered $0 generic list, so every covered strength is $0 with an active Tab membership at participating pharmacies nationwide or by mail order.
What is the cheapest way to get amoxicillin?
For medications on Tab's covered list, a Tab membership is the cheapest route: covered strengths of amoxicillin are $0 with an active membership, and unlimited video visits with a licensed clinician are included, so the visit that produces the prescription is covered too.
What is the usual dose of amoxicillin?
Pediatric Patients aged 3 months to 12 years weighing less than or equal to 40 kg: 90 mg/kg/day divided every 12 hours, administered for 10 days. ( 2 ) 2.1 Important Administration Instructions To minimize the potential for gastrointestinal intolerance, amoxicillin and clavulanate potassium for oral suspension, 600 mg/42.9 mg per 5 mL should be taken at the start of a meal. (FDA-approved label, retrieved 2026-09-15. Your clinician sets your dose.)
What are the side effects of amoxicillin?
The following clinically significant adverse reactions are described elsewhere in labeling: Anaphylactic reactions [see Warnings and Precautions (5.1) ] Severe Cutaneous Adverse Reactions (SCAR) [see Warnings and Precautions (5.2) ] Drug-Induced Enterocolitis Syndrome (DIES) [see Warnings and Precautions (5.3) ] Hepatic Dysfunction [see Warnings and Precautions (5.4) ] Clostridioides difficile- Associated Diarrhea (CDAD) [see Warnings and Precautions (5.5) ] Skin Rash in Patients with Mononucleosis [see Warnings and Precautions (5.6) ] The most frequently reported adverse reactions (incidence rate > 4 %) were coughing, vomiting, contact dermatitis (i.e., diaper rash), fever, upper respiratory tract infection, and diarrhea. (FDA-approved label, retrieved 2026-09-15.)
What interacts with amoxicillin?
Coadministration with probenecid is not recommended. ( 7.1 ) Concomitant use of amoxicillin and clavulanate potassium for oral suspension, 600 mg/42.9 mg per 5 mL with oral anticoagulants may increase the prolongation of prothrombin time. ( 7.2 ) Coadministration with allopurinol increases the risk of rash. (FDA-approved label, retrieved 2026-09-15. Tell your clinician about every medication and supplement you take.)
Amoxicillin is $0 on the covered list
Members pay $0 for covered generics at participating pharmacies nationwide or by mail order — plus unlimited virtual primary care, urgent care and dermatology visits. No insurance needed.
Solo $49/mo · Family $119/mo for up to 4 people · Family+ $149/mo for up to 8
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