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In this Article

• What is fesoterodine (Toviaz)?
• What are the possible side effects of fesoterodine (Toviaz)?
• What is the most important information I should know about fesoterodine (Toviaz)?
• What should I discuss with my healthcare provider before taking fesoterodine (Toviaz)?
• How should I take fesoterodine (Toviaz)?
• What happens if I miss a dose (Toviaz)?
• What happens if I overdose (Toviaz)?
• What should I avoid while taking fesoterodine (Toviaz)?
• What other drugs will affect fesoterodine (Toviaz)?
• Where can I get more information?

What happens if I miss a dose (Toviaz)?

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.

What happens if I overdose (Toviaz)?

Seek emergency medical attention if you think you have used too much of this medication.

Overdose symptoms may include dry mouth, blurred vision, and fast heartbeat.

What should I avoid while taking fesoterodine (Toviaz)?

Fesoterodine can cause blurred vision or side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake, alert, and able to see clearly.

Avoid becoming overheated or dehydrated during exercise and in hot weather. Fesoterodine can decrease perspiration and you may be more prone to heat stroke.

Avoid drinking alcohol. It can increase some of the side effects of fesoterodine.

What other drugs will affect fesoterodine (Toviaz)?

Before taking fesoterodine, tell your doctor if you are using any of the following drugs:

• arsenic trioxide (Trisenox);
• conivaptan (Vaprisol);
• an antibiotic such as clarithromycin (Biaxin), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin), levofloxacin (Levaquin), moxifloxacin (Avelox), pentamidine (NebuPent, Pentam), telithromycin (Ketek), or troleandomycin (Tao);
• an antifungal medication such as clotrimazole (Mycelex Troche), itraconazole (Sporanox), ketoconazole (Nizoral), or voriconazole (Vfend);
• an antidepressant such as amitriptylline (Elavil, Vanatrip), clomipramine (Anafranil), desipramine (Norpramin), nefazodone, paroxetine (Paxil), or sertraline (Zoloft);
• anti-malaria medications such as chloroquine (Arelan), mefloquine (Lariam), or halofantrine (Halfan);
• heart rhythm medicine such as amiodarone (Cordarone, Pacerone), dofetilide (Tikosyn), disopyramide (Norpace), ibutilide (Corvert), procainamide (Procan, Pronestyl), propafenone (Rythmol), quinidine (Quinidex, Quin-Release Quin-G), or sotalol (Betapace);
• HIV/AIDS medicine such as atazanavir (Reyataz), delavirdine (Rescriptor), indinavir (Crixivan), nelfinavir (Viracept), saquinavir (Invirase, Fortovase), or ritonavir (Norvir);
• medicine to prevent or treat nausea and vomiting, such as dolasetron (Anzemet), droperidol (Inapsine), or ondansetron (Zofran);
• medicines to treat psychiatric disorders, such as chlorpromazine (Thorazine), clozapine (FazaClo, Clozaril), haloperidol (Haldol), pimozide (Orap), thioridazine (Mellaril), or ziprasidone (Geodon);
• migraine headache medicine such as sumatriptan (Imitrex) or zolmitriptan (Zomig); or
• narcotic medication such as levomethadyl (Orlaam), or methadone (Dolophine, Methadose).

This list is not complete and there are many other medicines that can interact with fesoterodine. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.

Where can I get more information?

Your pharmacist can provide more information about fesoterodine.

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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