Tell your doctor if you are also using blood pressure medicine (such as amlodipine, atenolol, clonidine, lisinopril, metoprolol, quinapril, Avapro®, Benicar®, Cozaar®, Diovan® Lotrel®, Toprol®), a diuretic (water pill, such as hydrochlorothiazide, furosemide, torsemide, Lasix®), or medicine to treat impotence (such as sildenafil, tadalafil, vardenafil, Cialis®, Levitra®, Viagra®).
Make sure your doctor knows if you are also using echinacea, St John's wort, alprazolam (Xanax®), amiodarone (Cordarone®), aprepitant (Emend®), armodafinil (Nuvigil®), bosentan (Tracleer®), cimetidine (Tagamet®), cyclosporine (Gengraf®, Neoral®, Sandimmune®), conivaptan (Vaprisol®), isoniazid (Nydrazid®), modafinil (Provigil®), pioglitazone (Actos®), prednisone (Orasone®), vemurafenib (Zelboraf®), medicine to treat depression (such as fluoxetine, nefazodone, Prozac®, Serzone®), medicine to treat infection (such as clarithromycin, erythromycin, fluconazole, itraconazole, ketoconazole, nafcillin, posaconazole, rifampin, telithromycin, voriconazole, Nizoral®, Rifadin®, Rimactane®), medicine to treat HIV infection (such as amprenavir, atazanavir, lopinavir, ritonavir, Crixivan®, Kaletra®, Lexiva®, Norvir®, Prezista®, Reyataz®, Rescriptor®), medicine to treat hepatitis C (such as boceprevir, telaprevir, Incivek®, Victrelis®), medicine to treat seizures (such as carbamazepine, phenobarbital, phenytoin, valproic acid, Depakene®, Dilantin®, Tegretol®), or birth control pills.