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Jim Carrey's lawyer, Martin Singer, issued a statement to ET on Thursday in response to further allegations made by the estranged husband of Carrey's deceased ex, Cathriona White.

"The claim that Mr. Carrey gave Cathriona White an STD is categorically disputed," Singer said in response to Mark Burton's amended complaint, which alleges that Carrey "knowingly gave White STDs, lied about the fact he'd given her the diseases and then 'dumped' her after she confronted him."

"This is a desperate, bogus claim made by the 'husband' of the sham marriage," Singer continued. "My client will not pay money to end this opportunist's transparent shakedown lawsuit, and this malicious case will be dismissed."

RELATED: Jim Carrey Sued for Wrongful Death by Late Girlfriend Cathriona White's Estranged Husband

The amended complaint is part of a wrongful death lawsuit, in which Burton alleges that Carrey obtained drugs illegally under the false name of "Arthur King" and provided them to his ex.

White was found dead in her home at age 30 on Sept. 28, 2015, following a drug overdose. A toxicology report found four prescription drugs in her system: a mix of painkillers, beta blockers and a sleep aid. Her death was officially ruled a suicide by the Los Angeles County Coroner's office in July of this year.

"Mr. Carrey has suffered a great deal in the last year with the suicide of the woman he dearly loved, and it is outrageous that he should be subjected to this predatory lawsuit," Singer's statement concluded.

Carrey spoke out on the wrongful death lawsuit earlier in the week, saying, "I will not tolerate this heartless attempt to exploit me or the woman I loved. Cat's troubles were born long before I met her and sadly her tragic end was beyond anyone's control. I really hope that someday soon people will stop trying to profit from this and let her rest in peace."

WATCH: Jim Carrey Responds to Wrongful Death Lawsuit: 'What a Terrible Shame'