A GH receptor antagonist that blocks growth hormone action. Used for acromegaly when surgery and somatostatin analogs fail to normalize IGF-1.

Is Pegvisomant FDA approved?

Yes, Pegvisomant is FDA approved. FDA Approved - Acromegaly

What are the side effects of Pegvisomant?

Reported side effects of Pegvisomant include: Infection, Pain, Nausea, Injection site reactions, Liver toxicity (rare but serious), Hypoglycemia in diabetics, FDA approved (Somavert).

What is the typical dosing for Pegvisomant?

FDA-approved dosing. Common doses observed in research: 40 mg loading dose, 10-30 mg daily maintenance. Duration: Long-term / chronic use. Administration: Subcutaneous injection daily.

Hormonal

Pegvisomant

Also known as: Somavert

FDA Approved

Popular For

Acromegaly, GH blockade, IGF-1 normalization

Key Facts: Pegvisomant

Category: Hormonal
FDA Status: FDA Approved
Clinical Status: FDA Approved - Acromegaly
Administration: Subcutaneous injection daily
Typical Dose: 10-30 mg daily
Frequency: Once daily
Evidence Level: FDA Approved
Duration: Long-term / chronic use

Also Known As

Somavert

Mechanism of Action

Pegvisomant is a modified GH analog that binds GH receptors but prevents receptor activation and signaling. It directly blocks GH action rather than suppressing GH secretion, effectively normalizing IGF-1 levels.

Research Summary

Most effective medical therapy for normalizing IGF-1 in acromegaly (~90% achieve normal IGF-1). Does not shrink tumors. Often combined with somatostatin analogs. PEGylation extends half-life for daily dosing.

Clinical Status:FDA Approved - Acromegaly

Trial Progress:FDA Approved

Pre

III

FDA

Dosing Information

FDA Approved·Human clinical trials completed, FDA approved

Typical DosingⓘDoses commonly used by people in practice, based on community reports and anecdotal experience.

Community experience

Common Dose

10-30 mg daily

Range

10-40 mg daily

Frequency

Once daily

GH receptor antagonist for acromegaly. Prescription only. Requires monitoring of liver function.

Research DosingⓘDoses from published scientific studies and clinical trials. May include human or animal research.

Scientific studies

FDA-approved dosing

Doses from Studies

40 mg loading dose

FDA Approved Labeling - Prescribed dose ↗

10-30 mg daily maintenance

FDA Approved Labeling - Prescribed dose ↗

Duration

Long-term / chronic use

Administration

Subcutaneous injection daily

Timing & Administration

Best Time to Take

Morning or as directed

Follow recommended protocol

Food Recommendation

With or without food

Why This Timing?

Timing may vary based on individual response and goals. Consistency is generally more important than specific timing.

Possible Side Effects

Not everyone experiences these effects. Individual responses vary based on dosage, duration, and personal factors.

●Infection
●Pain
●Nausea
●Injection site reactions
●Liver toxicity (rare but serious)
●Hypoglycemia in diabetics
●FDA approved (Somavert)

References

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