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Brittany’s hubby rips ‘O.D.’ buzz

Brittany Murphy’s heartbroken husband yesterday blasted the “crazy” suggestions that the “Clueless” star overdosed or had an eating disorder, insisting he has no idea what killed his 32-year-old wife.

Murphy spent her last night of life noshing on Thai takeout and homemade soup while checking out Oscar contenders from her bed, widower Simon Monjack told People magazine.

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He bristled at suggestions Murphy’s cardiac arrest was caused by drugs or an eating disorder.

“These rumors that she was anorexic? It’s crazy — she was slim, but that was her natural physique,” Monjack told the mag.

“This is what’s killing all of us. How did it happen? Her mum, myself and her family — we want to know why we lost our baby.”

Authorities have ruled out foul play, but investigators reportedly found prescription drugs in the actress’ Hollywood Hills home.

Monjack said Murphy — who in the past six months had worked on the films “Abandoned,” “Something Wicked” and “Shrinking Charlotte” — had laryngitis and was taking herbal medications and tea.

“It’s horrible — the death of a beautiful young woman,” he said.

In recent public appearances, Murphy appeared to be gaunt and underfed.

But at the time of her death, the 5-foot-5 Murphy weighed 115 pounds — within parameters of normal weight under federal standards, assistant chief coroner Ed Winter told The Post.

“We are faced with this ridiculous reality that people out there believe she felt, ‘Oh, poor me, I’m fat, I’m thin.’ Brittany didn’t see beauty as a physical thing — which I’m bloody lucky for,” he said.

Murphy Saturday night screened “It’s Complicated,” “Public Enemies” and “The Princess and the Frog” to help her decide how to vote as a member of the Academy of Motion Picture Arts and Sciences.

“She was tired and a little sad because she was sick,” her husband said.

But a leading pain-medication specialist said he was troubled by the amount of pills reportedly found in Murphy’s home.

“I’d be surprised if there weren’t medication-related issues involved in her death,” said Dr. David Kloth, a member of the American Society of Interventional Pain Physicians, a group that monitors prescription-drug abuse.

“To be 32 years old and die for no reason — that just doesn’t happen.”

david.li@nypost.com