Skip to content

Epinephrine: Uses, Side Effects, and How to Use It Safely

Published: July 22, 2026Updated: July 22, 2026

Epinephrine, also called adrenaline, is a medicine that can rapidly reverse severe allergic reactions and other sudden symptoms. It is available in forms such as an emergency auto-injector, injection, eye drops, and inhaled or nebulized medicine, each with different directions.

Quick summary

Epinephrine can be lifesaving for severe allergic reactions, so use the prescribed product exactly as directed and call emergency services when needed. Ask a doctor or pharmacist about your specific formulation, dose, and possible interactions.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 22, 2026Editorial policy

Key facts at a glance

ATC
A01AD01
Generic
Epinephrine
Class
sympathomimetic
Brands
EpiPen, Adrenalin
Availability
behind_counter
Pregnancy
C
Lactation
caution
Half-life (h)
0.1
Onset (min)
1
Duration (h)
1
Routes
im, iv, sc, inhaled
Forms
injection, inhaler
Regions
CN, US, EU, JP
Monitoring
heart-rate, blood-pressure

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)injection
Usual dose
0.3-0.5mg IM
Maximum
consult physician
Frequency
every 5-15 minutes as needed
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)injection
Usual dose
0.01mg/kg IM (max 0.3mg)
Maximum
consult physician
Frequency
every 5-15 minutes as needed
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)injection
Usual dose
0.3mg IM
Maximum
consult physician
Frequency
every 5-15 minutes as needed
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Single dose that may cause serious toxicity - doses above 10 mg may result in severe poisoning
Chronic overdose: Not typically applicable as epinephrine is used for acute conditions; chronic overexposure rare
Immediate actions
Discontinue epinephrine, establish IV access, monitor cardiac rhythm, control hypertension with IV vasodilators, treat arrhythmias, provide oxygen, consider activated charcoal if oral ingestion recent
Antidote
No specific antidote exists(Treatment is supportive; no antidote available)
Poison Control: 1-800-222-1222

Special Populations

8 groups
⚠

pregnancy

first trimester
caution
FDA Category
C
Dose Adjustment

use lowest effective dose

Key Recommendations

use only if benefits outweigh potential risks to fetus

Monitor

regular fetal monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

second trimester
caution
FDA Category
C
Dose Adjustment

use lowest effective dose

Key Recommendations

use only in emergencies when benefits outweigh risks

Monitor

fetal heart rate monitoring

Use with caution and monitor for adverse effects.

⚠

pregnancy

third trimester
caution
FDA Category
C
Dose Adjustment

use lowest effective dose

Key Recommendations

use in emergencies, may cause uterine contraction

Monitor

fetal monitoring and uterine activity

Use with caution and monitor for adverse effects.

✓

lactation

not applicable
safe
FDA Category
N
Dose Adjustment

no adjustment needed

Key Recommendations

compatible with breastfeeding

Monitor

none required

⚠

geriatric

over 65
caution
FDA Category
N
Dose Adjustment

start with lower dose, titrate slowly

Key Recommendations

increased sensitivity to cardiovascular effects, monitor blood pressure and heart rate

Monitor

close cardiovascular monitoring

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 pediatric formulations, appropriate dosing critical

Monitor

cardiovascular monitoring essential

Use with caution and monitor for adverse effects.

⚠

renal_impairment

severe creatinine clearance under 30
caution
FDA Category
N
Dose Adjustment

consider dose reduction in severe impairment

Key Recommendations

use with caution, monitor renal function

Monitor

monitor renal function and cardiovascular status

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

severe
caution
FDA Category
N
Dose Adjustment

may require dose reduction

Key Recommendations

use with caution in severe hepatic impairment

Monitor

monitor cardiovascular response

Use with caution and monitor for adverse effects.

Statistics and clinical data

prescribingFDA
2023

Commonly used since

Value:Early 1900s

Epinephrine has been used medically since the early 1900s for various emergency indications

drug_classWHO
2023

Drug class

Value:Catecholamine/Adrenergic agent

ATC code C01CA03 - Cardiac stimulants

usageMedical guidelines
2023

Primary indications

Value:Anaphylaxis, Cardiac arrest, Severe asthma, Hypotension

Main therapeutic uses in emergency medicine

administrationFDA
2023

Route of administration

Value:Intramuscular, Intravenous, Subcutaneous

Approved routes of administration for epinephrine

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

WellAlly may earn a referral fee from linked resources at no extra cost to you. Editorial content is never influenced by commercial relationships.

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 July 22, 2026. · Read our editorial policy