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Contact Medical Information

For VALCHLOR medical information inquiries, please contact Helsinn Therapeutics, (U.S.) Medical Information at 1‑84HELSINN‑U (1‑844‑357‑4668), select Option 1. Or contact us through our online Medical Information Request Form on this webpage.

Patients should always talk with their doctor first if there are any questions about their individual treatment.

Thank you for your interest in VALCHLOR and your consideration to contact Helsinn Medical Information.

Medical Information Request Form

This form is not for reporting information about any medication side effects. To report suspected adverse reactions, contact Helsinn at 1‑855‑4‑VALCHLOR (1‑855‑482‑5245), or FDA at 1‑800‑FDA‑1088 orwww.fda.gov/medwatch

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Prescribing VALCHLOR

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Important Safety Information

Contraindications

VALCHLOR is contraindicated in patients with known severe hypersensitivity to mechlorethamine. Hypersensitivity reactions, including anaphylaxis, have occurred with topical formulations of mechlorethamine.

Warnings And Precautions

Mucosal or eye injury: Exposure of mucous membranes to mechlorethamine such as the oral mucosa or nasal mucosa causes pain, redness, and ulceration, which may be severe. Exposure of the eyes causes pain, burns, inflammation, photophobia, and blurred vision. Blindness and severe irreversible anterior eye injury may occur. Should eye exposure or mucosal contact occur, immediately irrigate for at least 15 minutes with copious amounts of water, followed by immediate medical consultation
Secondary exposure: Avoid direct skin contact with VALCHLOR in individuals other than the patients due to risk of dermatitis, mucosal injury, and secondary cancers
Dermatitis: Dermatitis may be moderately severe or severe. Monitor patients for redness, swelling, inflammation, itchiness, blisters, ulceration, and secondary skin infections. Stop treatment with VALCHLOR or reduce dose frequency
Non-melanoma skin cancer: Monitor patients during and after treatment with VALCHLOR
Embryo-fetal toxicity: May cause fetal harm. Women should avoid becoming pregnant while using VALCHLOR due to the potential hazard to the fetus. For nursing mothers, do not breastfeed during treatment with VALCHLOR
Flammable gel: VALCHLOR is an alcohol-based gel. Avoid fire, flame, and smoking until the gel has dried

Adverse Reactions

The most common adverse reactions (≥5%) were dermatitis (56%), pruritus (20%), bacterial skin infection (11%), skin ulceration or blistering (6%), and hyperpigmentation (5%). These reactions may be moderately severe or severe. Elderly patients aged 65 and older may be more susceptible. Depending on severity, treatment reduction, suspension, or discontinuation may be required.

Use In Specific Populations

Contraception: Females who are able to become pregnant, and males with female partners who are able to become pregnant, should use a barrier method of contraception to avoid direct exposure of reproductive organs to VALCHLOR
Infertility: The reproductive effects of VALCHLOR have not been studied: however systemically administered mechlorethamine may impair fertility. The reversibility of the effect on fertility is unknown.

Dosing and Application

VALCHLOR is for topical dermatologic use only. Apply a thin film of gel once daily to affected areas of the skin. VALCHLOR is a cytotoxic drug and special handling and disposal procedures should be followed during use. Caregivers must wear disposable nitrile gloves when applying VALCHLOR. Patients and caregivers must thoroughly wash hands after handling or applying VALCHLOR.

To report SUSPECTED ADVERSE REACTIONS, contact Helsinn Therapeutics (U.S.), Inc. at 1-855-482-5245 or FDA at 1-800-FDA-1088 or visit www.fda.gov/medwatch.

Please see the VALCHLOR full Prescribing Information and Medication Guide (EN/ES).