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Bacampicillin

Published: July 26, 2026Updated: August 24, 2026

Bacampicillin is a penicillin-type antibiotic that acts against a broad range of bacterial infections. It is a prodrug that converts to ampicillin in the body and is used to treat respiratory, urinary, and skin infections caused by susceptible bacteria.

Quick summary

Bacampicillin is a broad-spectrum penicillin antibiotic used to treat various bacterial infections.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 24, 2026Editorial policy

Key facts at a glance

ATC
J01CA06
RxNorm
18687
Generic
Bacampicillin
Class
atc-j01
Brands
—
Availability
rx
Lactation
unknown
Routes
oral
Forms
tablet, suspension
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Dosage and administration

adult (standard)tablet
Usual dose
500mg twice daily
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)tablet
Usual dose
250mg twice daily
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)tablet
Usual dose
400mg daily
Maximum
consult physician
Frequency
once daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Consult local poison control center for specific information
Chronic overdose: Varies by patient
Immediate actions
Call poison control center: 1-800-222-1222
Poison Control: 1-800-222-1222

Special Populations

10 groups
⚠

pregnancy

first trimester
caution
FDA Category
C
Dose Adjustment

avoid unless necessary

Key Recommendations

use only if clearly needed and benefits outweigh potential risks to fetus

Monitor

regular prenatal monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

second trimester
caution
FDA Category
C
Dose Adjustment

avoid unless necessary

Key Recommendations

use only if infection cannot be treated with safer alternatives

Monitor

regular prenatal monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

third trimester
caution
FDA Category
C
Dose Adjustment

avoid close to delivery

Key Recommendations

use with caution near term; may affect neonatal gut flora

Monitor

fetal monitoring in late pregnancy

Use with caution and monitor for adverse effects.

⚠

pediatric_age

children under 12
caution
FDA Category
N
Dose Adjustment

weight-based dosing required

Key Recommendations

use standard pediatric dosing; not recommended for infants under 3 months

Monitor

monitor for allergic reactions

Use with caution and monitor for adverse effects.

⚠

geriatric

elderly
caution
FDA Category
N
Dose Adjustment

reduce dose based on renal function

Key Recommendations

assess renal function before dosing; use lower doses in impaired renal function

Monitor

monitor renal function and for adverse reactions

Use with caution and monitor for adverse effects.

⚠

renal_impairment

mild
caution
FDA Category
N
Dose Adjustment

no dose adjustment needed

Key Recommendations

standard dosing acceptable

Monitor

periodic renal function monitoring

Use with caution and monitor for adverse effects.

⚠

renal_impairment

moderate to severe
caution
FDA Category
N
Dose Adjustment

reduce dose and extend interval

Key Recommendations

adjust dose based on creatinine clearance; consult renal dosing guidelines

Monitor

frequent renal function monitoring; drug level monitoring if available

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

mild to moderate
caution
FDA Category
N
Dose Adjustment

may require dose reduction

Key Recommendations

use with caution; monitor liver function

Monitor

regular liver function tests

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

severe
caution
FDA Category
N
Dose Adjustment

use lowest effective dose

Key Recommendations

use only if benefits outweigh risks; avoid in severe hepatic impairment if possible

Monitor

close liver function monitoring

Use with caution and monitor for adverse effects.

⚠

lactation

breastfeeding
caution
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

generally considered compatible with breastfeeding; monitor infant for gastrointestinal disturbances

Monitor

observe infant for diarrhea or thrush

Use with caution and monitor for adverse effects.

Statistics and clinical data

prescribingFDA
2023

Commonly prescribed since

Value:1970s-1980s

General prescribing information for this antibiotic prodrug

drug_classWHO
2023

Drug class

Value:Penicillin antibiotic (prodrug of ampicillin)

Antibiotic classification information

usageMedical guidelines
2023

Common uses

Value:Respiratory tract infections, urinary tract infections, gastrointestinal infections, skin infections

Common therapeutic uses for bacterial infections

formulationPharmaceutical references
2023

Administration form

Value:Oral (tablets, suspension)

Available pharmaceutical formulations

Treats respiratory tract infections (pneumonia, bronchitis), urinary tract infections, skin and soft tissue infections, and certain ear, nose, and throat infections caused by susceptible bacteria.

As a prodrug of ampicillin, it inhibits bacterial cell wall synthesis by preventing cross-linking of peptidoglycan, leading to bacterial cell death.

Should not be used by patients with penicillin allergy. Common side effects include gastrointestinal symptoms like nausea and diarrhea. May reduce effectiveness of oral contraceptives. Complete the full course even if symptoms improve.

Contraindications

Conditions and patient states where this medication should be avoided or used with caution.

Do not use (1)

ABSOLUTEhypersensitivity

Known allergy to this medication or its components

Use caution (1)

RELATIVEpregnancy

Consult healthcare provider for benefits vs risks assessment

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 24, 2026. · Read our editorial policy