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Do not use DAWNZERA if you have had a serious allergic reaction, including anaphylaxis to donidalorsen or any of the ingredients in DAWNZERA.

Before using DAWNZERA, tell your healthcare provider about all of your medical conditions, including if you: are pregnant or plan to become pregnant, are breastfeeding or plan to breastfeed. It is not known if DAWNZERA can harm your unborn baby, or if it passes into your breast milk and if it can harm your baby.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

What are the possible side effects of DAWNZERA? 
DAWNZERA can cause serious side effects including allergic reactions. Allergic reactions can include rash, trouble breathing, chest pain, fainting, dizziness, feeling lightheaded, swelling of the face, lips or tongue, and itching.  Stop using DAWNZERA and call your healthcare provider or get emergency help right away if you have any of these symptoms.

The most common side effects of DAWNZERA include injection site reactions (such as redness or pain at the injection site), upper respiratory tract infection, urinary tract infection, abdominal discomfort.

These are not all the possible side effects of DAWNZERA. Tell your healthcare provider or treatment team about any side effects you may have.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/safety/medwatch, or call 1-800-FDA-1088.  

It is not known if DAWNZERA is safe and effective in children under 12 years of age. 

Please see full Prescribing Information and Patient Information for DAWNZERA.