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Hetastarch

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

Hetastarch is a synthetic colloid plasma volume expander used to restore intravascular volume in patients with hypovolemia (low blood volume). It works by drawing fluid from tissues into the bloodstream, increasing blood pressure and improving circulation. This medication is primarily used in hospital settings for fluid resuscitation during surgery, trauma, or severe burns.

Quick summary

Hetastarch is a synthetic plasma volume expander used to treat low blood volume in hospitalized patients.

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

This medication carries a boxed (black box) warning — the strongest type of FDA warning. Review the full prescribing information before use.

Key facts at a glance

ATC
B05AA07
RxNorm
5531
Generic
Hetastarch
Class
atc-b05
Brands
Hespan, Hextend
Availability
rx
Lactation
unknown
Routes
—
Forms
injection
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)IV infusion
Usual dose
500-1000mL
Maximum
consult physician
Frequency
as needed based on clinical indication
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)IV infusion
Usual dose
10-20mL/kg
Maximum
consult physician
Frequency
as needed based on clinical indication
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)IV infusion
Usual dose
250-500mL
Maximum
consult physician
Frequency
as needed with caution due to renal function
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Single dose exceeding 10 grams may cause serious toxicity including volume overload and coagulopathy
Chronic overdose: Cumulative dosing exceeding recommended limits can lead to tissue accumulation, pruritus, and renal impairment
Immediate actions
Discontinue infusion, maintain airway, provide supportive care, monitor vital signs and renal function
Antidote
No specific antidote available(Supportive care is mainstay of treatment; effectiveness depends on early intervention)
Poison Control: 1-800-222-1222

Special Populations

11 groups
⚠

pregnancy

first trimester
caution
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

use only if benefits outweigh potential risks to fetus

Monitor

regular fetal monitoring recommended

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 when absolutely necessary for maternal indications

Monitor

fetal well-being 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 only when benefits outweigh risks; avoid if possible near delivery

Monitor

fetal monitoring and uterine activity assessment

Use with caution and monitor for adverse effects.

?

lactation

breastfeeding
unknown
FDA Category
N
Dose Adjustment

no specific adjustment

Key Recommendations

discontinue breastfeeding or express and discard milk during treatment

Monitor

monitor infant for adverse effects

⚠

geriatric

elderly
caution
FDA Category
N
Dose Adjustment

no specific dose adjustment

Key Recommendations

use with caution; monitor renal function and fluid status

Monitor

renal function monitoring, fluid balance assessment

Use with caution and monitor for adverse effects.

⚠

pediatric_age

infants
caution
FDA Category
C
Dose Adjustment

reduce dose based on body weight

Key Recommendations

use only in emergency situations; not recommended for neonates

Monitor

closely monitor volume status and renal function

Use with caution and monitor for adverse effects.

⚠

pediatric_age

children
caution
FDA Category
C
Dose Adjustment

use weight-based dosing

Key Recommendations

use with caution; limited studies available

Monitor

monitor renal function and coagulation parameters

Use with caution and monitor for adverse effects.

⚠

renal_impairment

mild to moderate
caution
FDA Category
N
Dose Adjustment

reduce dose or increase dosing interval

Key Recommendations

use with caution; monitor renal function

Monitor

renal function monitoring, fluid balance

Use with caution and monitor for adverse effects.

⚠

renal_impairment

severe
caution
FDA Category
N
Dose Adjustment

significant dose reduction required

Key Recommendations

use only if benefits outweigh risks; consider alternatives

Monitor

close monitoring of renal function and electrolytes

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

moderate
caution
FDA Category
N
Dose Adjustment

no specific adjustment

Key Recommendations

use with caution; may affect coagulation

Monitor

coagulation parameters, liver function tests

Use with caution and monitor for adverse effects.

⚠

hepatic_impairment

severe
caution
FDA Category
N
Dose Adjustment

use with caution

Key Recommendations

use only if benefits outweigh risks

Monitor

close monitoring of coagulation and liver function

Use with caution and monitor for adverse effects.

Statistics and clinical data

prescribingFDA
2023

Commonly prescribed since

Value:1970s

General prescribing information for plasma volume expanders

drug_classWHO
2023

Drug class

Value:Plasma volume expander/Colloid

Pharmacological classification

usageMedical guidelines
2023

Common uses

Value:Treatment of hypovolemia, plasma volume expansion

Therapeutic indications

pharmacologyPharmacopoeia
2023

Average molecular weight

Value:450,000-500,000 Da

Physicochemical properties

Hetastarch is indicated for the treatment of hypovolemia (low blood volume) and for plasma volume expansion during surgery, trauma, shock, and severe burns. It may also be used in cases of acute hemorrhagic shock where blood products are not immediately available.

Hetastarch is a hydroxyethyl starch solution that acts as a colloid osmotic agent. When infused intravenously, it remains in the intravascular space longer than crystalloid solutions due to its large molecular size. It draws fluid from the interstitial and intracellular spaces into the bloodstream through osmotic pressure, thereby expanding plasma volume and improving hemodynamic stability.

Hetastarch should be used with caution in patients with kidney impairment, heart failure, or coagulation disorders. It may cause allergic reactions, pruritus (itching), and has been associated with increased risk of kidney injury and mortality in certain patient populations. Use requires careful monitoring of fluid balance, kidney function, and coagulation parameters. This medication is typically administered in inpatient/hospital settings under medical supervision.

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