Qwo may cause serious side effects, including:
Allergic (hypersensitivity) reactions, including anaphylaxis. Call your healthcare provider right away if you have any of these symptoms of an allergic reaction after an injection of Qwo:
hives
trouble breathing
low blood pressure
swollen face
chest pain
dizziness or fainting
Injection site bruising.
The most common side effects include bruising, pain, areas of hardness, itching, redness, discoloration, swelling and warmth in the treatment area.
These are not all of the possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA 1088.
 Qwo side effects (more detail)
General information about Qwo
Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. If you would like more information, talk to your healthcare provider. You can ask your pharmacist or healthcare provider for information that is written for health professionals.
What are the ingredients in Qwo?
Active ingredient: collagenase clostridium histolyticum
Inactive ingredients: mannitol, sucrose, tromethamine, and hydrochloric acid
The diluent contains: calcium chloride dihydrate, sodium chloride, and Water for Injection, USP
