You can easily contact us if you think that not all information about Sildenafil was provided, or if you have specific problems with your health and therefore you have no idea whether or not taking Sildenafil is acceptable for you. Only your doctor can be totally sure if Sildenafil will adversely affect your health or not, depending on your individual situation. In the case that you know that you are healthy and you do not have diabetes and heart conditions, then you may very well take this medication without worrying, and expect to be happy with the result. Never take Sildenafil with other drugs. This also goes for those drugs such as Cialis that are used for treating ED. You can not take 2 similar kinds of drugs because it may lead to vision disorders and other unwanted side effects.