Warnings/PrecautionsDo not issue Viagra, if you are besides victimisation a nitrate dose for breast painfulness or spirit problems, including trinitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, Minitran, Deponit, Transderm-Nitro), isordil dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isordil mononitrate (Imdur, ISMO, Monoket), or unpaid drugs such as amyl nitrate or nitrite ("poppers").
Before pickings Viagra, secernate your medico most all former medications you use for cavernous disfunction, or if you are victimisation any of the followers medications:
* bosentan (Tracleer);
* a lineage diluent such as coumadin (Coumadin);
* tagamet (Tagamet, Tagamet HB);
* an antibiotic such as e-mycin (E-Mycin, Eryc, Ery-Tab) or clarithromycin (Biaxin);
* cardura (Cardura), minipress (Minipress), Terazosin (Hytrin);
* HIV medicines such as amprenavir (Agenerase), tipranavir (Aptivus), darunavir (Prezista), efavirenz (Sustiva), viramune (Viramune), crixivan (Crixivan), invirase (Invirase, Fortovase), lopinavir/ritonavir (Kaletra), fosamprenavir (Lexiva), norvir (Norvir), atazanavir (Reyataz), or viracept (Viracept);
* an fungicidal medicine such as sporanox (Sporanox) or ketoconazole (Nizoral);
* carbamazepine (Tegretol), phenobarbitone (Luminal), or diphenylhydantoin (Dilantin); or
* rifadin (Rifadin, Rimactane) or rifabutin (Mycobutin).
Tell your medico some all the prescriptions and nonprescription medications you use. This includes vitamins, minerals, herbal products, and drugs positive by former doctors. Do not starting victimisation a new medicine without tattle your bushel.
If you let ticker problems grievous decent to shuffling intimate activeness a life-threatening, you should obviate victimisation Viagra. Use it conservatively, if you've had a spunk approach, virgule, or grievous mettle irregularities inside the retiring 6 months. Be evenly conservative, if you let grievous heights or low origin insistence, bosom loser or fluid angina.
In showcase of cardiac symptoms development (for model, lightheadedness, sickness, and bureau bother) during intimate activeness, do not preserve. Tell your fix approximately the trouble as presently as potential.
If you get a precondition that mightiness resultant in durable erections, such as sickle cadre anaemia, multiple myeloma (a disease of the drum heart), or leucaemia, use Viagra with carefulness. Also use conservatively if you get a venereal job or disfigurement such as Peyronie's disease. If an hard-on lasts more than 4 hours, assay handling forthwith. Permanent impairment and impotency could solvent.
If you birth a hemorrhage upset, a breadbasket ulceration, or the familial eye stipulation known as retinitis pigmentosa, use Viagra with precaution. Its safe below these destiny has not been studied yet.