For many veterans suffering from post traumatic stress disorder, the cure doesn't come in a bottle but on four legs.
Now the Department of Veterans Affairs is cutting off funding for what many consider their lifeline.
"I knew with the injuries I had, my old life was gone," said Retired Army Sgt. Mike Ballard.
But Ballard has finally found a little bit of peace and a whole lot of love.
"This has been everything to me, all in one. My battle buddy, my best friend, someone who's with me at all times so I'm no longer alone," said Ballard.
But support for the service dog program has suffered a serious setback.
Despite all the success stories the VA says there simply isn't evidence to support the need for service dogs for members of the military who suffer from PTSD. More study is needed, says the VA.
So for now, it will no longer cover the cost of therapy dogs for mental illness. Without it, Scout, a black lab, may not go home with 1st Sgt. Rafael Estevez after all.
"I don't feel I have the resources necessary to keep up with the dog," he said.
Even with a prescription for her service dog, the VA still turned down retired 1st Sgt. Margarita Brunke. Without Cameron she wouldn't be here.
"Um, I tried to take my life away several times so yeah, I'd be six feet underground," she said.
It's a reality that gives Sgt. Ballard pause. Apollo has changed his world. He IS his world.
"I wouldn't be here without him," said Ballard.