Before taking itraconazole,
tell your doctor and pharmacist if you are allergic to itraconazole; other antifungal medications such as fluconazole (Diflucan), ketoconazole (Nizoral), or voriconazole (Vfend); any other medications, or any of the ingredients in itraconazole products. If you are taking itraconazole oral solution, tell your doctor if you are allergic to saccharin or sulfa medications. Ask your pharmacist for a list of the ingredients.
tell your doctor and pharmacist if you are taking the following medications or took them in the last 2 weeks before starting treatment with itraconazole: carbamazepine (Epitol, Tegretol, Teril, others); efavirenz (Sustiva, in Atripla); isoniazid (Laniazid, in Rifamate, in Rifater); rifabutin (Mycobutin); rifampicin; nevirapine (Viramune); phenobarbital; and phenytoin (Dilantin, Phenytek).
tell your doctor or pharmacist if you are taking the following medications: aliskiren (Tekturna, in Amturnide, Tekamlo, and Tekturna HCT), apixaban (Eliquis), axitinib (Inlyta), colchicine (Colcrys, Mitigare), dabrafemob (Taflinar), darifenacin (Enablex), dasatinib (Sprycel), everolimus (Afinitor, Zortress), ibrutinib (Imbruvica), nilotinib (Tasigna), rivaroxaban (Xarelto), salmeterol (Serevent), sildenafil (only Revatio brand used for lung disease), simeprevir (Olysio), sunitinib (Sutent), tamsulosin (Flomax, in Jalyn), temsirolimus (Torisel), trabectedin (Yondelis), and vardenafil (Staxyn, Levitra). Your doctor may tell you not to take these medications during your treatment and for 2 weeks after your treatment with itraconazole.
tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements and herbal products you are taking or plan to take. Be sure to mention the medications listed in the IMPORTANT WARNING section and any of the following: antibiotic medications such as ciprofloxacin (Cipro), clarithromycin (Biaxin, in PrevPac), erythromycin (E.E.S. Ery-Tab, others), and telithromycin (Ketek); anticoagulant (''blood thinner'') such as warfarin (Coumadin, Jantoven); alprazolam (Xanax); aprepitant (Emend); aripiprazole (Abilify); atorvastatin (Lipitor, in Caduet, in Liptruzet); bortezomib (Velcade); bosentan (Tracleer); budesonide (Entocort EC, Pulmicort, Uceris); buprenorphine (Buprenex, Butrans, in Bunavail; others); buspirone; ciclesonide (Alvesco, Omnaris, Zetonna); cilostazol (Pletal); cinacalcet (Sensipar); cyclosporine (Gengraf, Neoral, Sandimmune); dabigatran (Pradaxa); dexamethasone; diazepam (Valium); digoxin (Lanoxin); docetaxel (Docefrez, Taxotere); eletriptan (Relpax); erlotinib (Tarceva); fentanyl (Actiq, Duragesic, Fentora, Subsys, others); fesoterodine (Toviaz); fluticasone (Flovent, in Advair); gefitinib (Iressa); haloperidol (Haldol); HIV protease inhibitors including indinavir (Crixivan), darunavir (Prezista) taken with ritonavir, fosamprenavir (Lexiva) taken with ritonavir, and saquinavir (Invirase); imatinib (Gleevac); ixabepilone (Ixempra Kit); lapatinib (Tykerb); maraviroc (Selzentry); meloxicam (Mobic); methylprednisolone (Medrol); nadolol (Corgard, in Corzide); oxybutynin (Ditropan XL, Oxytrol); oxycodone (Oxaydo, Oxycontin, in Percodan; others); ponatinib (Iclusig); praziquantel (Biltricide); quetiapine (Seroquel); ramelteon (Rozerem); repaglinide (Prandin, in Prandimet); riociguat (Adempas); risperidone (Risperdal); saxagliptin (Kombiglyze XR, Onglyza); sirolimus (Rapamune); solifenacin (Vesicare); tacrolimus (Astagraf, Prograf); tadalafil (Adcirca, Cialis); tolterodine (Detrol); vardenafil (Levitra, Staxyn); verapamil (Calan, Covera, Verelan PM, in Tarka), vinblastine, vincristine (Marqibo Kit), and vinorelbine (Navelbine). Your doctor may need to change the doses of your medications or monitor you carefully for side effects. Many other medications may also interact with itraconazole, so be sure to tell your doctor about all the medications you are taking, even those that do not appear on these lists.
if you are taking an antacid, take it 1 hour before or 2 hours after you take itraconazole.
tell your doctor if you have or have ever had the conditions mentioned in the IMPORTANT WARNING section,, cystic fibrosis (an inborn disease that causes problems with breathing, digestion, and reproduction), any condition that decreases the amount of acid in your stomach, or HIV.
tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. You should not take itraconazole to treat nail fungus if you are pregnant or could become pregnant. You may start to take itraconazole to treat nail fungus only on the second or third day of your menstrual period when you are sure you are not pregnant. You must use effective birth control during your treatment and for 2 months afterward. If you become pregnant while taking itraconazole to treat any condition, call your doctor.
you should know that itraconazole may make you dizzy or cause blurred or double vision. Do not drive a car or operate machinery until you know how this medication affects you.