I was reading on the Brand/Generic names of these oral erectile dysfunction (ED) tablets. ‎I decided to compile this information for you all, just to take the trouble out of you ‎having to weigh the differences to make your decisions on which is better/or which one ‎to use. You can thank me later. Here is what I came across. I have tried the ‎“lil’ blue pill”, neither that nor the Cialas did not work for me. I was told that I did not give tablets a ‎chance to work. In addition, what ever you do, do NOT drink or eat grapefruit while ‎using this as it will not work. I believe that is why it did not work for me. I was drinking ‎grapefruit everyday. No one bothered to explain this to me, not even the Pharmacist. I had to read about the generics, and ‎actually visit their websites to find this out. I hope that this works for everyone that has ‎not tried these tablets yet.‎

‎Viagra (Sildenafil Citrate) – Pfizer (27 March 1998)‎
Viagra works up to 4.5 - 5 hours ‎
Viagra is taken 60 minutes before sex ‎
Side effects are similar - up to 10% of users experience headache, red face
Viagra pills are easier to split (Note: I do not think they are)‎
Note: Taking sildenafil and drinking grapefruit juice may cause sildenafil to not work as ‎well for you or may cause more side effects.‎

‎Levitra (Vardenafil) - Bayer/Glaxo (19 August 2003)‎
Levitra works for up to 5 hours
Levitra is taken 25 - 60 minutes before sex‎
Side effects are similar - up to 10% of users experience headache, red face‎
Levitra is reported to be more effective for diabetics
Talk to your doctor about drinking grapefruit juice while taking this medicine.‎


‎Cialis (Tadalafil) – Icos/Eli Lilly (21 November 2003)‎
Cialis has been approved for duration of 36 hours; however, there are studies showing high efficacy out to 100 hours.
Cialis is taken 20 - 60 minutes before sex ‎
Side effects are similar - up to 10% of users experience headache, red face
Cialis is reported to be more effective for diabetics ‎
A 20 mg dose of Tadalafil is comparable to a 100 mg dose of sildenafil (Viagra).‎
Note: To minimize your chances of experiencing side effects, avoid drinking grapefruit ‎juice with Cialis.‎

As a 62 year old diabetic, heart patient, and now prostate cancer patient, I am very familiar with several of the available ED drugs. I was prescribed Viagra and Androgel for testicular failure years ago. It worked fairly well until I developed type II diabetes. As a result of an elevated PSA count (doubled in one year, I did a biopsy, was diagnosed with prostate cancer in December, stage 2, gleason scale 6 and had palladium seeds surgically implanted (brachytherapy) on March 1st. Since that time, I have been using Cialis 20 mg in place of the Viagra that no longer works for me. I have had very few side effects from the Cialis and recommend it for other cancer patients experiencing ED problems as a result of their cancer treatments. Hang in there guys, it gets better.