You are correct per published medical literature
[QUOTE=Admin2;3893036]It was originally developed to treat high blood pressure. End of.
A2.[/QUOTE]Much respect A2. You are correct about its on label FDA approved use when first available to the medical world in 1998.
Years prior to that, because DARPA is constantly looking for ways to improve military performance and readiness in ways normal humans cannot begin to comprehend, there was a request to find a chemical solution to high altitude performance issues for soldiers working in that environment. As late as the mid 2000's, there were still other national military organizations testing sildenafil on their troops in high altitude missions, even though DARPA dismissed it years earlier.
The initial DARPA trials proved inconclusive, showing mixed results. It was concluded that because there is not a consistent, predictable response to high altitude effects from person to person, sildenafil DARPA research funding was terminated. So, the holy grail of a magic drug that can improve high altitude performance for most instead of a few, still goes on. Anyone can search WebMD and other medical websites for sildenafil altitude sickness, and see what has been researched. The basis for that is because of the initial DARPA trials. Most of the later research through the mid 2000's is related to athletics, and in reality, that's what soldiers are, but with weapons.
However, sildenafil did help cardio vascular issues by increasing oxygenation of the blood and reducing stress of the blood vessels for those with pulmonary arterial hypertension and chest pains, so Pfizer obtained FDA approval for that use in 1998 in the civilian world, and again later for ED, because better oxygen sats means better erections, if one is heart healthy.
And just to toss this out there, Provigil (modafinil) also started as a military research project, to find a chemical that would allow operatives on extended missions to stay awake and alert for days without the side effects associated with amphetamines. Prior to modafinil, amphetamines were used, and as most know, side effects from those for long term use can range from addiction to insanity, and coming off of them can be difficult. Modafinil has very little addictive potential and few mental health side effects once terminated. Normal sleep patterns return within a few days, and there is no craving for the drug. Today, on label use is common for those with narcolepsy, sleep apnea, shift workers with sleep disorders, and other physiological fatigue health issue. However, its origin is again military, and as we know, that stuff starts out secret. To this day, modafinil is used by the US Air Force as a keep awake pill, on the ISS for certain crews on extended duties, and many military units around the world in lieu of amphetamines.
Many things we used today started out as secret military projects. GPS is the most commonly known. It was a military research project in the 70's and was known by the early 80's. When civilian flight KAL 007 was shot down over Soviet airspace in 1983, President Reagan said that GPS would be made available for civilian use worldwide to avert such future tragedies. Once the Block I GPS system was finished, it was made available for civilian use with rough accuracy, and in the 90's, President Clinton authorized a finer accuracy for civilian use, but not the highest which is still only accessible for military use.
There are always side effects.
[QUOTE=LaProduct;3892867]Is there any side effects?[/QUOTE]You can look it up for details as there is probably been the most amount of literature on the side affects of any drug out there. In general, the things most people complain about are flushing of the face (sitting at dinner and the chick asks if you have been out in the sun, just say "yes" ringing of the ears, blue vision, causes your sinuses to get stuffed up, might make your heart race, and a few other things. That is why most people experiment with the dosage, trying to use as little as possible and yet it will still work. For me, I started using it probably 15 years ago. At that time, I could barely do 10 mg before my face turned red. I don't know if it's tolerance over the years or what. I am now at 100 mg and no side effects. But that's different for everyone.
Also, unfortunately, it doesn't work for everyone and some report it doesn't work for everyone. Alcohol screws it up. Also a big meal screws it up.
C3.
You're Right About The Big Meal
[QUOTE=Camera3;3893328]Also, unfortunately, it doesn't work for everyone and some report it doesn't work for everyone. Alcohol screws it up. Also a big meal screws it up.
C3.[/QUOTE]You can have sex or you can digest food.
Canadian Pharmacy is easy enough
Two slight things about it. First, it isn't fast. I seem to remember it takes a week or so to get it in the mail. And since you are technically smuggling, it can be confiscated. That happened to me once but the pharmacy cheerfully send a replacement plus a bunch of free stuff for my trouble. The other thing is, the stuff actually came from India. And came in a letter envelop with my address and the return address hand written, presumably to conceal the fact that they are smuggling illegal drugs into the country.
C3.
[QUOTE=Brants730;3894548]Thanks, but it's not b / c I'm trying to hide it from anyone. I really just don't want to deal with having to see a doc, and not against getting it on the cheap either.[/QUOTE]