People who have certain medical conditions or allergies will likely not be able to take Viagra because they could have adverse reactions. Mainly the list would include people that have had a stroke, very low blood pressure, liver disorders, Sickle Cell Anemia, hearing loss, heart problems, and issues of the esophagus. People who are allergic to Sildenafil derivatives should not take Viagra and people that are taking anything that contains nitrates or nitric oxide should avoid Viagra as well. If you are not certain, ask your doctor before taking Viagra.
You will know if you maybe shouldn’t have taken the Viagra pills and are having an allergic reaction as you will get a rash, some swelling, itching, and shortness of breath. If this happens you should certainly avoid Viagra. If you are already taking a medication to treat ED then you should not take Viagra in conjunction with it. Others who should possibly avoid Viagra would be those under the age of 18 and those over the age of 65 unless they have permission from their doctor.
When you are speaking with the doctor that will write your prescription for Viagra it is very important that you indicate each and every medication that you are taking including both prescribed medicines as well as over the counter medicines. Because of the ingredients that are in Viagra they could very well counteract with prescription medications that treat heart conditions. It is also likely that you will not be able to take Viagra if you have HIV. Basically, it is a matter of speaking to a doctor and being honest so that you can decide together which medication and dosage that would be best for you.
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