Can I use Actiq if I am taking muscle relaxants?

You may be able to take Actiq (fentanyl) if you take muscle relaxants, but you will be at increased risk of adverse side effects. Actiq, a synthetic opiate lozenge used to treat breakthrough cancer pain, is a central nervous system depressant. It causes your heart to beat more slowly and in some cases can bring on side effects such as excessive sleepiness and trouble breathing. Muscle relaxants can cause similar central nervous system depressant effects, so if you take them, you may be at higher risk of side effects from Actiq. Your doctor may prescribe a different medication that is safer to take with Actiq than muscle relaxants.

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