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When and How to Take It

Some general considerations to keep in mind when taking this medication include the following:
  • This medication comes in the form of a tablet, which is dissolved in the mouth between the upper cheek and gums (above a rear molar tooth). Alternatively, the tablet can be placed under the tongue.
  • Keep Fentora between your cheek and gum (or under the tongue) until the tablet dissolves. This normally takes 14 to 25 minutes. You may swallow any remaining tablet with a glass of water after 30 minutes.
  • Fentora comes in a sealed blister package, which should not be opened until immediately before use. To open the blister package, peel the foil backing away to expose the tablet. Do not try to push the tablet through the foil, as this may damage the tablet.
  • Do not cut, crush, or break the tablets. They must be placed in the mouth whole.
  • Do not suck on, chew, or swallow the tablets. Doing so may cause less of the medication to be absorbed by the body, resulting in inadequate pain relief.
  • Place Fentora on alternating sides of your mouth with each subsequent dose.
  • If you feel dizzy, unusually sleepy, or sick to your stomach before the tablet is completely dissolved, rinse your mouth with water and spit the tablet into the sink or toilet. Make sure to rinse the sink or flush the toilet to dispose of Fentora (see Fentora Storage and Disposal for information about safe disposal).
  • Continue to take your regularly scheduled, around-the-clock, opioid pain medication while taking Fentora. Fentora alone will not control your pain.
  • This medication may be very dangerous, and could even cause death, if ingested by a child or someone for whom the medication is not prescribed. Store Fentora in a safe place, out of the reach of children (see Fentora Storage and Disposal for more information).
  • For the medication to work properly, it must be taken as prescribed. Do not increase your dose or suddenly stop taking this medication without your healthcare provider's approval.
  • If you are unsure about anything related to your dosage of Fentora, please talk with your healthcare provider or pharmacist.
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