I found an old book about Dilantin uses that Jack Dreyfuss, the billionaire mutual fund guru of the 60's wrote back in the day. It was reviewed in 1967 in Life Magazine and Readers Digest same year. He was so taken with his personal improvement in his mental depression and related anxiety issues, from Dilantin use way back then, that he left his Dreyfuss Funds in trusted hands and started up the Foundation bearing his name and began spending all his time and lots of his money spreading the word about multiple uses of Dilantin. He did massive compilations of the research on the the uses and one of them was to treat T! The research compilation is now easy to do with the internet! and he's continued it! I just got my D.O. to prescribe it for me and had to bring him the book to remind him of Dilantin, since it's not in vogue anymore. It calls for 2, 50MG tabs, 3x daily, which are chewed, then chased with water. Very tasty! The warnings on the label were dire, so I have opted to take just one, 3x daily and see what happens. The book says it is benign in the extreme! So, far, it's been 5 hours since I chewed the 1st 50 mg tablet. I'll go to sleep soon and get up in the am for my next chew. So far, absolutely zero noticeable side effects! The 180 pills costed me $7.21 at CVS, but my prescription insurance pays 80% of the bill so, it would be more without my insurance, thanks be to my employer's benefit package! I will keep all updated on this progress, and I urge all to google Dreyfuss Medical Foundation.org to read the massive data on Dilantin. If he's right, and lots of big guns agreed with him, like Richard Nixon, Ronald Reagan, Elliott Richardson, all biggies back in the day, then the multiple uses of it could be a Godsend to the world right now. But, since it's out of patent protection, few drug cos will want to mess with it. And if it's as effective as is claimed, there will be pros and cons lining up to fight or promote it! PLEASE CHECK OUT THOSE MULTIPLE USES! On a different note, I'm augmenting it with Life Extension Foundation's "DLPA", a very cheap but also effective helper for lots of nuero issues. I'll get those tabs in a few days. Also will update those too. In addition to my very bad T, I am often depressed and disconcerted with no physical, or outward stressors to cause it. Always tired, and very difficult to get stuff done. As I re-read the Dreyfuss book, I saw that T was one of the items that D helped! So, we'll see!I don't drink, smoke, do drugs, eat well and avoid toxicities wherever I can. no loud music or sounds! My health stats are close to perfect, with a pulse of 56 and excellent BP and other health markers. For age an 67, male, I'm blessed with having survived massive cancers 22 years ago, with lots of plumbing removed. I always had ADD but it was not diagnosed back in my day as a kid-teen, young adult. It actually helped my career cause I could focus on multiple things all at once and did well in my telephone sales career, never seeing the people to whom I sold insurance. That same book search thru my health library at home found the DLPA book. It too says it helps T. We'll see!