The most common side effects are headache, muscle pain and injection site reactions (e.g., pain, swelling, tenderness, redness). Nausea, skin rash, fatigue, flu-like illness, and fever may also occur. Contact your health care provider if you have any of the following problems because these may be signs of an allergic reaction:
- difficulty breathing
- hoarseness or wheezing
- hives
- dizziness, weakness or fast heart beat