U.S. Relaunch · July 2026

Protecting Normal Tissue in Appropriate Oncology Patients.

ETHYOL® (amifostine) for injection is a cytoprotective agent indicated to reduce the cumulative renal toxicity associated with repeated administration of cisplatin in patients with advanced ovarian cancer, and to reduce the incidence of moderate to severe xerostomia in patients undergoing postoperative radiation treatment for head and neck cancer where the radiation port includes a substantial portion of the parotid glands.

Limitation of Use

The effectiveness of ETHYOL to reduce the cumulative renal toxicity of cisplatin has not been established in tumors other than advanced ovarian cancer. ETHYOL should not be administered in settings where chemotherapy can produce a significant survival benefit or cure, or in patients receiving definitive radiotherapy, except in the context of a clinical study.

ETHYOL U.S. Launch Overview — provided by Legacy Pharma / CNX Therapeutics.

Indications

Two approved treatment pathways.

ETHYOL is approved in two distinct oncology settings. Select the pathway that matches your patient scenario.

Advanced ovarian cancer

Reduction of Cisplatin Renal Toxicity

Indicated to reduce the cumulative renal toxicity associated with repeated administration of cisplatin in patients with advanced ovarian cancer.

Dose
910 mg/m² IV once daily
Infusion
15-minute IV infusion, starting 30 minutes prior to chemotherapy
See administration details →
Postoperative head and neck radiotherapy

Reduction of Moderate to Severe Xerostomia

Indicated to reduce the incidence of moderate to severe xerostomia in patients undergoing postoperative radiation treatment for head and neck cancer where the radiation port includes a substantial portion of the parotid glands.

Dose
200 mg/m² IV once daily
Infusion
3-minute IV infusion, starting 15 to 30 minutes prior to standard fraction radiation therapy
See administration details →
Limitation of Use

The effectiveness of ETHYOL to reduce the cumulative renal toxicity of cisplatin has not been established in tumors other than advanced ovarian cancer. ETHYOL should not be administered in settings where chemotherapy can produce a significant survival benefit or cure, or in patients receiving definitive radiotherapy, except in the context of a clinical study.

At a glance

ETHYOL® at a glance.

Drug class
Cytoprotective agent (organic thiophosphate)
Presentation
500 mg per 10 mL single-dose vial
Form
Sterile lyophilized powder for IV use
Approved indications
Two: chemotherapy and radiotherapy settings
Mechanism

A cytoprotective aminothiol prodrug.

ETHYOL (amifostine) is an organic thiophosphate prodrug that is dephosphorylated in tissue to its active free thiol metabolite. Consistent with its label, ETHYOL is used to reduce the cumulative renal toxicity of cisplatin in advanced ovarian cancer and to reduce moderate to severe xerostomia in postoperative head and neck radiotherapy where the radiation port includes a substantial portion of the parotid glands.

The information here is intentionally aligned to the current U.S. Prescribing Information and does not make antitumor-efficacy claims.

Clinical Pharmacology in PI →
NORMAL TISSUEselective uptake · active thiolAmifostine (prodrug)Active free thiolDEPHOSPHORYLATION IN TISSUE
Clinical Evidence Explorer

Filter label-aligned clinical evidence.

Source: Current U.S. Prescribing Information →
Renal toxicityChemotherapy setting

Cisplatin + cyclophosphamide in advanced ovarian cancer

ETHYOL 910 mg/m² administered prior to each cycle of cisplatin was studied for reduction of cumulative renal toxicity, as characterized on the current U.S. Prescribing Information.

View source →
Xerostomia (moderate to severe)Radiotherapy setting

Postoperative head and neck radiation

ETHYOL 200 mg/m² administered prior to each fraction of standard fraction radiotherapy was studied for reduction of moderate to severe xerostomia, as described in the current U.S. Prescribing Information.

View source →
SafetyChemotherapy setting

Pooled label safety experience

The most common adverse reactions include hypotension, nausea, and vomiting. See the current U.S. Prescribing Information for the complete adverse reaction profile.

View source →
AdministrationChemotherapy setting

Supportive care measures

Adequate hydration prior to infusion, antiemetic premedication, supine positioning during infusion, and blood pressure monitoring every 5 minutes during infusion are specified in the U.S. Prescribing Information.

View source →
AdministrationRadiotherapy setting

Radiotherapy pathway

For radiotherapy, ETHYOL is administered as a 3-minute IV infusion beginning 15 to 30 minutes prior to standard fraction radiotherapy, with hydration and antiemetic premedication as described in the label.

View source →
Evidence coverage by pathway

Visualization of label-aligned content available in this explorer. Not a clinical outcome.

Chemotherapy pathway88%
Radiotherapy pathway72%
Safety & administration96%
Administration

Two distinct administration pathways.

Follow the U.S. Prescribing Information for hydration, antiemetic premedication, patient positioning, blood-pressure monitoring, timing, and infusion instructions.

IV
Cisplatin renal-toxicity reduction

Chemotherapy pathway

  1. 1
    Hydrate

    Ensure adequate hydration prior to infusion, per the U.S. Prescribing Information.

  2. 2
    Premedicate

    Administer dexamethasone and a 5-HT3 antagonist prior to and in conjunction with ETHYOL.

  3. 3
    Position

    Place patient in the supine position for the duration of the infusion.

  4. 4
    Monitor BP

    Monitor blood pressure every 5 minutes during infusion.

  5. 5
    Infuse

    Administer 910 mg/m² as a 15-minute IV infusion, starting 30 minutes prior to cisplatin.

RT
Reduction of moderate to severe xerostomia

Radiotherapy pathway

  1. 1
    Hydrate

    Ensure adequate hydration prior to infusion.

  2. 2
    Premedicate

    Administer antiemetic medication, including dexamethasone and a 5-HT3 antagonist, prior to and in conjunction with ETHYOL.

  3. 3
    Position

    Place patient in the supine position for the duration of the infusion.

  4. 4
    Monitor BP

    Monitor blood pressure every 5 minutes during infusion.

  5. 5
    Infuse

    Administer 200 mg/m² as a 3-minute IV infusion, starting 15 to 30 minutes prior to standard fraction radiation therapy.

Blood-pressure monitoring during infusion

Systolic BP monitoring thresholds during ETHYOL infusion — see full instructions and post-interruption criteria in the U.S. Prescribing Information.

Baseline systolic BPDecrease from baseline prompting interruption
< 100 mmHg20 mmHg
100 – 119 mmHg25 mmHg
120 – 139 mmHg30 mmHg
140 – 179 mmHg40 mmHg
≥ 180 mmHg50 mmHg

Interpret alongside the full BP interruption and resumption criteria in the U.S. Prescribing Information.

Indication pathway details are also summarized in the Indications section. Dosing: 910 mg/m² IV once daily · 200 mg/m² IV once daily.
Important Safety Information

Full Important Safety Information.

Review the complete Important Safety Information below and see the U.S. Prescribing Information for details.

ETHYOL is contraindicated in patients with a history of hypersensitivity to aminothiol compounds or mannitol.
Resources

Prescribing, safety, and launch resources.

Full Prescribing Information

Current U.S. Prescribing Information from DailyMed — the authoritative source.

Open PI

Printer-friendly Label

Printable label view from DailyMed for clinical reference.

Print label

U.S. Launch Announcement

CNX Therapeutics and Legacy Pharma July 2026 U.S. commercial partnership and launch announcement.

Read announcement

Contact Legacy Pharma

Commercial and general inquiries directly to Legacy Pharma USA Inc.

Contact

ETHYOL U.S. Launch Overview Video

Official launch video — asset slot to be populated at launch.

Coming soon

Administration Guide

Downloadable HCP administration reference — approved asset slot.

Coming soon

MOA Animation

Label-aligned animation of cytoprotective mechanism — approved asset slot.

Coming soon

Approved Clinical Materials

Additional promotional or medical materials as released by Legacy Pharma.

Coming soon
Ask About Ethyol

Guided answers, sourced to the label.

Responses are limited to approved product information and are not medical advice. For safety concerns, contact Legacy Pharma at 1-800-727-7151 or report to FDA MedWatch.
Suggested questions
Answer

What are the approved indications?

ETHYOL is indicated to reduce the cumulative renal toxicity associated with repeated administration of cisplatin in patients with advanced ovarian cancer, and to reduce the incidence of moderate to severe xerostomia in patients undergoing postoperative radiation treatment for head and neck cancer where the radiation port includes a substantial portion of the parotid glands.

Contact

Two clear paths of contact.

Please route safety and adverse event reports through the safety channels below. Commercial and general inquiries go to Legacy Pharma.

Commercial & general inquiries

Legacy Pharma USA Inc.

U.S. packager and distributor of ETHYOL. Use this channel for non-safety commercial questions.

Contact Legacy Pharma →
Safety & adverse event reporting

Report suspected adverse events

Report suspected adverse events or product complaints to Legacy Pharma and/or the FDA MedWatch program.