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Fentanyl

This form:

Missed Dose

If you leave a patch on for more than 3 days (72 hours), remove the patch and apply a new patch as soon as you remember. Do not double the dose to catch up.

Overdose

This medication patch may be harmful if chewed or swallowed. If someone has overdosed, remove the patch if possible. For serious symptoms such as passing out or trouble breathing, give them naloxone if available, then call 911. If the person is awake and has no symptoms, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: slow/shallow breathing, slow heartbeat, coma.