You will need to be honest with your health care provider and tell him everything about your current health condition and any medical conditions that you used to have in the past. This is very important, as your dose and your whole treatment will depend on the health examination of your doctor. If you are taking any medicines – bring a list of them with you for your doctor to see. If you have a history of diabetes, high blood pressure, heart disease and high cholesterol, or if you are older than 50 or smoke regularly taking Viagra may not be the best idea. These factors may further increase the risk of developing sudden vision loss. Sudden vision loss may have to do with the fact there isn’t enough blood flow to the optic nerve of the eye, and it is not clear still whether the risk factors mentioned are important. Priapism is another rare reaction that needs to be reported as soon as possible to your health care provider to prevent the situation from getting worse. If you have a history of priapism – please let your doctor know about it in advance as well. Before you buy Viagra – online or elsewhere – it’s important to make sure you aren’t going to develop an allergic reaction to it. In case you have an allergic reaction, you will need to go to your local emergency center and will probably be unable to carry on with you treatment. This can be prevented – and all you need to do is be honest with your health care provider. Medical conditions you have or used to have are very important, as they will let your doctor determine whether taking Viagra is going to be safe and efficient for you. Any conditions need to be reported, even if you think they are insignificant or have nothing to do with your impotence. You would be surprised to know how many things in our body are closely related even though it is not too obvious to us.
Before taking Viagra, tell your doctor if you are allergic to any drugs, or if you have: heart disease, congestive heart failure, blood cell disorder, stomach ulcer, liver disease, retinitis pigmentosa, recent history of a heart attack or stroke, coronary artery disease, heart rhythm problems, bleeding disorder, kidney disease, Peyronie's disease, and high or low blood pressure. Additional tests may be required to determine the safety of using Viagra, or your health care provider may recommend not taking this drug at all to avoid serious reactions. Viagra has been classified as FDA pregnancy category B, even though it has not been reported to cause harm to an unborn baby. Make sure you always talk to your health care provider if you are pregnant and for any reason think you need to be taking Viagra. Tel your doctor if you are using any drugs that can interfere with the success of your treatment. The following medications are supposed to be mentioned: bosentan, rifampin, fosamprenavir, isoniazid, itraconazole, indinavir, nefazodone, ketoconazole, erythromycin, diltiazem, clarithromycin, verapamil, amprenavir, nicardipine, telithromycin, cimetidine, saquinavir, diclofenac, imatinib, ritonavir, conivaptan, clotrimazole, doxazosin, quinidine, and enoxacin. This list is not complete and there are of course other medications that you may be taking and that will need to be reported to your doctor. If you are not sure the medicine you are using at the moment may interact with Viagra or not – it’s best to ask your pharmacist or your doctor instead of trying to take a guess.