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Semaglutide: Uses, Side Effects, and How to Take It

Published: July 26, 2026Updated: July 26, 2026

Semaglutide is a prescription medicine that helps lower blood sugar and may help with weight management. It is available in different forms and brands, including once-weekly injections and an oral tablet, each with specific approved uses. Your doctor or pharmacist can help determine whether semaglutide is appropriate for you.

Quick summary

Semaglutide can help control blood sugar in type 2 diabetes and support weight loss when used with diet and physical activity. It is available by injection or as an oral tablet, but the appropriate product, schedule, and dose must be prescribed by a clinician.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 26, 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
A10BJ06
RxNorm
1991302
Generic
Semaglutide
Class
atc-a10
Brands
Ozempic, Rybelsus, Wegovy
Availability
rx
Lactation
unknown
Routes
oral
Forms
tablet
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
14mg once daily
Maximum
consult physician
Frequency
once daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)injection
Usual dose
0.25mg once weekly
Maximum
consult physician
Frequency
once weekly
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)injection
Usual dose
0.5mg once weekly
Maximum
consult physician
Frequency
once weekly
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Doses significantly higher than therapeutic recommendations (maximum 2.4mg weekly) may cause severe toxicity
Chronic overdose: Prolonged exposure to doses above recommended limits may lead to persistent gastrointestinal complications and nutritional deficiencies
Immediate actions
Supportive care including IV fluids, antiemetic therapy, monitoring of vital signs and renal function
Antidote
No specific antidote exists(Treatment is supportive and symptomatic; effectiveness depends on early intervention)
Poison Control: 1-800-222-1222

Special Populations

10 groups
✗

pregnancy

first trimester
unsafe
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

discontinue use at least 2 months before planned pregnancy

Monitor

regular fetal monitoring and ultrasound examinations

Use of this medication in this population requires careful consideration of risks and benefits.

✗

pregnancy

second trimester
unsafe
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

switch to insulin therapy for glycemic control

Monitor

regular fetal growth monitoring

Use of this medication in this population requires careful consideration of risks and benefits.

✗

pregnancy

third trimester
unsafe
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

discontinue use and transition to insulin

Monitor

fetal well-being monitoring

Use of this medication in this population requires careful consideration of risks and benefits.

✗

lactation

general
unsafe
FDA Category
N
Dose Adjustment

not recommended

Key Recommendations

discontinue breastfeeding or avoid semaglutide use

Monitor

monitor infant for gastrointestinal symptoms

Use of this medication in this population requires careful consideration of risks and benefits.

⚠

geriatric

general
caution
FDA Category
N
Dose Adjustment

no dose adjustment required

Key Recommendations

use with caution due to increased risk of gastrointestinal adverse effects

Monitor

monitor renal function and hydration status

Use with caution and monitor for adverse effects.

✗

pediatric_age

under 12
unsafe
FDA Category
N
Dose Adjustment

not recommended

Key Recommendations

not approved for use in children under 12 years

Monitor

not applicable

Use of this medication in this population requires careful consideration of risks and benefits.

✓

renal_impairment

mild
safe
FDA Category
N
Dose Adjustment

no dose adjustment required

Key Recommendations

can be used at standard doses

Monitor

routine monitoring of renal function

⚠

renal_impairment

moderate
caution
FDA Category
N
Dose Adjustment

no dose adjustment required

Key Recommendations

use with caution and monitor closely

Monitor

monitor renal function every 3-6 months

Use with caution and monitor for adverse effects.

✓

hepatic_impairment

mild
safe
FDA Category
N
Dose Adjustment

no dose adjustment required

Key Recommendations

can be used at standard doses

Monitor

routine monitoring of liver function

⚠

hepatic_impairment

moderate
caution
FDA Category
N
Dose Adjustment

no dose adjustment required

Key Recommendations

use with caution due to limited clinical data

Monitor

monitor liver function tests periodically

Use with caution and monitor for adverse effects.

Statistics and clinical data

drug_classWHO
2023

Drug class

Value:GLP-1 receptor agonist

Pharmacological classification of Semaglutide

prescribingFDA
2023

FDA approval year

Value:2017

First FDA approval date for Semaglutide

usageFDA
2023

Common uses

Value:Type 2 diabetes management, weight management

Primary therapeutic indications

brand_namesFDA
2023

Brand names

Value:Ozempic, Rybelsus, Wegovy

Commercial brand names for Semaglutide

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 July 26, 2026. · Read our editorial policy