fentanyl citrate (oral transmucosal) (cont.)
What happens if I miss a dose (Actiq)?
Since fentanyl citrate is used as needed, you may not be on a dosing schedule. If you are taking the medication regularly, take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose (Actiq)?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of fentanyl citrate can be fatal.
What should I avoid while taking fentanyl citrate (Actiq)?
Grapefruit and grapefruit juice may interact with fentanyl citrate and lead to potentially dangerous effects. Discuss the use of grapefruit products with your doctor.
What other drugs will affect fentanyl citrate (Actiq)?
Cold or allergy medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression or anxiety can add to sleepiness caused by fentanyl citrate. Tell your doctor if you regularly use any of these medicines, or any other narcotic pain medicine.
There are many other medicines that can cause serious medical problems if you take them together with fentanyl citrate, especially:
- diltiazem (Cardizem, Cartia, Dilacor, Diltia, Diltzac, Taztia, Tiazac);
- verapamil (Calan, Covera, Isoptin, Verelan);
- an antibiotic such as clarithromycin (Biaxin), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin, Pediazole), rifabutin (Mycobutin), rifampin (Rifater, Rifadin, Rifamate), or telithromycin (Ketek);
- an antifungal medication such as fluconazole (Diflucan), itraconazole (Sporanox), ketoconazole (Nizoral), miconazole (Oravig), or voriconazole (Vfend);
- HIV/AIDS medicine such as atazanavir (Reyataz), delavirdine (Rescriptor), efavirenz (Sustiva, Atripla), fosamprenavir (Lexiva), indinavir (Crixivan), nelfinavir (Viracept), nevirapine (Viramune), ritonavir (Norvir, Kaletra), saquinavir (Invirase), and others; or
- seizure medication such as carbamazepine (Carbatrol, Tegretol), oxcarbazepine (Trileptal), phenytoin (Dilantin), and others.
This list is not complete and other drugs may interact with fentanyl citrate. Tell your doctor about all medications you use. This includes prescription, over the counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.
Where can I get more information?
Your pharmacist can provide more information about fentanyl citrate.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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