Erenumab

• ​Pain, redness, itching or swelling at the injection site
• Constipation 
• Muscle spasm or muscle cramps
• High blood pressure

The symptoms of a drug allergy can happen within hours to days after using erenumab. It includes one or more of the following:

• Swollen face/eyes/lips/tongue
• Difficulty in breathing
• Itchy skin rashes over your whole body

Other symptoms that you should seek medical help,

• Severe constipation may happen after taking this medication
• Worsening of high blood pressure

If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.

​Inform your healthcare professional if:

• You are allergic to this medication or any of the other ingredients of this medication.
• You are allergic to latex or rubber.
• You have uncontrolled blood pressure, kidney or liver diseases.
• You are pregnant, planning to become pregnant, or breastfeeding.
• You are taking any other medications, including supplements, traditional medications and herbal remedies.