I have had Fibromyalgia for several years and have just been prescribed avinza for the pain. has?

Here is a list of side effects, from miner to severe;
Possible side effects of Avinza Extended-Release Capsules:
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:

Constipation; dizziness; drowsiness; headache; lightheadedness; mood changes; nausea; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); excessive drowsiness; face or throat swelling; fast, irregular, or slow heartbeat; hallucinations; itching; pounding in the chest; seizures; shock; shortness of breath; sudden chest pain; sweating.

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This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.

Read more: http://www.drugs.com/cdi/avinza-extended-release-capsules.html#ixzz0ro7GbP62