Captain & Tenille Singers In Vicious Post-Divorce Battle Over Explosive Tell-All Book

Captain & Tennille star Daryl Dragon is fighting back after he was publicly trashed by his ex-wife and former musical partner.

"I was drugged — that's all I can tell you," the ailing 73-year-old keyboardist told RadarOnline.com in an exclusive interview from his home in Arizona on March 17.

He added sarcastically: "I'm just wonderful. I have Parkinson's disease."

Dragon's outbursts to RadarOnline.com came after he was blasted by Toni Tennille, who divorced him in 2014 following 39 years of marriage.

A friend of Dragon's told RadarOnline.com that Tennille was "about as mean and cruel as you can get" after she ripped him in a published interview related to the release of her new self-titled memoir.

While Dragon is suffering from debilitating tremors caused by his neurological condition, Tennille, 75, blasted her ex.

She said: "Did we have sex? Yes. But it was never tender, it was never emotional, it was never a joining of two hearts…That's why I eventually said, 'To heck with this.'"

Tennille further ridiculed Dragon for his attempts to get her to eat healthy with regimens like a grapefruit diet, calling them "crazy ideas."

She also callously criticized his looks in discussing his failed hair transplant and a medical condition that gave him unusually large eyeballs.

"The poor guy has serious medical issues and she is practically dancing on his grave," the source told RadarOnline.com. "She killed their marriage, and now this book — what else can she do to humiliate him?"

The couple soared to fame in the 1970s with their own ABC series and a string of hits, including "Love Will Keep Us Together" and "Muskrat Love."

Despite Dragon's best attempts to keep the marriage afloat, Tennille finalized the split in July 2014.

Dragon told RadarOnline.com he won't talk about Tennille's new memoir. "No, I haven't read it," he said.