He is a Nobel Prize winner for his work on Nitric Oxide, the world's foremost expert. He says we must take a MINIMUM of 4 grams daily of L-Argenine & 1 Gram of L-Citruline, AND nitric rich foods such as greens & beets. I prefer a glass of beet juice daily, it makes the test strips turn pink easily. There are no side effects.
I followed his directions and within 2 weeks my blood pressure came down from high 155/95 to low normal, I use 1 tablespoon of Argenine Pro powder mixed in water daily every evening: http://www.amazon.com/s/ref=nb_sb_noss_2/175-8137977-3861638?url=search-alias%3Daps&field-keywords=argenine+pro
Also, my erectile dysfunction improved a lot, but not completely. I needed a boost from v1agra which simply raises Nitric Oxide to the genitals. v1agra was developed as the direct result of Dr. Ignarro, and was originally intended as a drug for heart disease. However, it ended up as a miracle for ED by accident.
I suggest using Nitric Oxide saliva test strips to monitor his Nitric Oxide levels. You want the strips to measure some shade of pink.
Also once Nitric Oxide levels are at normal (pink) then v1agra may not be needed. If needed, only small doses may be adequate. I'm getting feedback from men saying that v1agra was not needed after following Dr. Ignarro's Nitric Oxide Program.
I am taking all of the detailed supplements listed above with no side effects. I am now 6 months into this Nitric Oxide Program, and my workouts at the gym are improving dramatically. I can do a lot better now on the treadmill at the Cardio heart rate. Exercise is also a vital part of Dr. Ignarro's program. At least get out there and walk for 1 mile a day. (Jogging is not necessary)
So bottom line, by following Dr. Ignarro, Dr. Hallberg & other doctors I have detailed in my new research file, your dear husband should be able to ditch his drugs, his drug pushing doctors and return to optimal health. For more vital information on Optimal Health See: https://sites.google.com/site/iodinereferenes/optimal-health
PS) My wife has also reduced her blood pressure to normal using Dr. Ignarro's advice.
Hope I answered all of your questions, don't hesitate to ask if you have more questions,