Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur: lasting changes in skin color, pain as skin is thawing, infection at the application site, delayed wound healing.

Tell your doctor immediately if any of these rare but very serious side effects occur (with long-term exposure): change in the amount of urine, yellowing eyes/skin, dark urine, stomach/abdominal pain, persistent nausea/vomiting, unusual tiredness.

A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Read the Ethyl Chloride (ethyl chloride) Side Effects Center for a complete guide to possible side effects »

PRECAUTIONS: Before using ethyl chloride, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history.

This medication should be used only when clearly needed during pregnancy. It is not known whether this drug passes into breast milk. Discuss the risks and benefits with your doctor.