What happens if I miss a dose (Fareston)?
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 (Fareston)?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include severe forms of some of the side effects listed in this medication guide.
What should I avoid while taking toremifene (Fareston)?
Grapefruit and grapefruit juice may interact with toremifene and lead to potentially dangerous effects. Discuss the use of grapefruit products with your doctor.
What other drugs will affect toremifene (Fareston)?
Tell your doctor about all other medicines you use, especially:
- arsenic trioxide (Trisenox);
- isoniazid (for treating tuberculosis);
- lithium (Eskalith, Lithobid);
- St. John's wort;
- tacrolimus (Prograf);
- vitamin or mineral supplements that contain calcium or vitamin D;
- warfarin (Coumadin, Jantoven);
- an antibiotic such as clarithromycin (Biaxin), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin, Pediazole), levofloxacin (Levaquin), ofloxacin (Floxin), rifabutin (Mycobutin), rifampin (Rifadin, Rifater, Rifamate), telithromycin (Ketek), and others;
- an antidepressant such as amitriptylline (Elavil, Vanatrip, Limbitrol), venlafaxine (Effexor), nefazodone, and others;
- antifungal medication such as itraconazole (Sporanox), ketoconazole (Nizoral), voriconazole (Vfend), and others;
- seizure medicine such as carbamazepine (Carbatrol, Tegretol), clonazepam (Klonopin), phenobarbital (Solfoton), or phenytoin (Dilantin);
- a diuretic (water pill) such as chlorothiazide (Diuril), hydrochlorothiazide (HCTZ, HydroDiuril, Hyzaar, Lopressor HCT, Vasoretic, Zestoretic), chlorthalidone (Hygroton, Thalitone), indapamide (Lozol), metolazone (Mykrox, Zaroxolyn), and others;
- heart or blood pressure medication such as diltiazem (Cartia, Cardizem), nicardipine (Cardene), verapamil (Calan, Covera, Isoptin, Verelan), and others;
- heart rhythm medicine such as amiodarone (Cordarone, Pacerone), dofetilide (Tikosyn), disopyramide (Norpace), ibutilide (Corvert), procainamide (Procan, Pronestyl), quinidine (Quin-G), sotalol (Betapace), and others;
- HIV/AIDS medicine such as atazanavir (Reyataz), indinavir (Crixivan), nelfinavir (Viracept), saquinavir (Invirase), ritonavir (Norvir, Kaletra), and others;
- medicine to prevent or treat nausea and vomiting such as granisetron (Kytril) or ondansetron (Zofran);
- medicines to treat psychiatric disorders, such as haloperidol (Haldol), thioridazine (Mellaril), and others;
- 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 drugs that can interact with toremifene. 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 toremifene.
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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