What happens if I miss a dose (Toviaz)?
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 (Toviaz)?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include dry mouth, blurred vision, and fast heartbeat.
What should I avoid while taking fesoterodine (Toviaz)?
Fesoterodine may cause blurred vision or impair your thinking or reactions. Be careful if you drive or do anything that requires you to be 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.
Drinking alcohol can increase certain side effects of fesoterodine.
What other drugs will affect fesoterodine (Toviaz)?
Many drugs can interact with fesoterodine. Below is just a partial list. Tell your doctor if you are using:
- arsenic trioxide (Trisenox);
- conivaptan (Vaprisol);
- an antibiotic such as clarithromycin (Biaxin), levofloxacin (Levaquin), moxifloxacin (Avelox), pentamidine (NebuPent, Pentam), or telithromycin (Ketek);
- antifungal medication such as itraconazole (Sporanox), ketoconazole (Nizoral), posaconazole (Noxafil), or voriconazole (Vfend);
- an antidepressant such as amitriptylline (Elavil, Vanatrip, Limbitrol), clomipramine (Anafranil), desipramine (Norpramin), nefazodone, paroxetine (Paxil), or sertraline (Zoloft);
- anti-malaria medications such as chloroquine (Aralen) or mefloquine (Lariam);
- heart rhythm medicine such as amiodarone (Cordarone, Pacerone), dofetilide (Tikosyn), disopyramide (Norpace), ibutilide (Corvert), procainamide (Procan, Pronestyl), propafenone (Rythmol), quinidine (Quin-G), or sotalol (Betapace);
- the hepatitis C medications boceprevir (Victrelis) or telaprevir (Incivek);
- HIV/AIDS medicine such as atazanavir (Reyataz), delavirdine (Rescriptor), indinavir (Crixivan), nelfinavir (Viracept), saquinavir (Invirase, Fortovase), or ritonavir (Norvir, Kaletra);
- 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, Treximet) or zolmitriptan (Zomig); or
- narcotic medication such as methadone (Methadose, Diskets, Dolophine).
This list is not complete and there are many other medicines that can interact with fesoterodine. 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. Keep a list of all your medicines and show it to any 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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