The cause for Matthew Perry‘s unexpected passing in his jacuzzi remains unsolved but certain substances have now been successfully ruled out.

Days after the “Friends” star passed away on October 28, the initial toxicology test carried out on the entertainer’s body revealed his death was not substance-related for at least two major drugs. Many suspected the beloved TV personality might have taken illicit drugs given his history of addictions; however, the verdict remains uncertain with more tests being conducted.

Matthew Perry’s First Toxicology Test Shows No Evidence Of Fentanyl & Meth

The “Mr. Sunshine” actor took his final breath in the hot tub at his Pacific Palisades home after playing pickleball earlier that day at the Riviera Country Club. He was found unresponsive by first responders, who also discovered various prescription pills in the Hollywood veteran’s home.

At first sight, it appeared the Golden Globe Award nominee had died from drowning; however, the entertainer’s cause of death was deferred pending further investigation. While investigating the Williamstown native’s passing, law enforcers ran a less-in-depth toxicology test on Perry to rule out the influence of drugs like fentanyl and meth.

Anti-Depressants, Anti-Anxiety Meds Found In Matthew Perry's Home
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The results of this partial view of what the 54-year-old’s system contained at the time of his death proved that he had not consumed the substances mentioned above. Nonetheless, this discovery did not rule out the presence of other illicit drugs in Perry’s blood.

Sources from the police told TMZ that more in-depth tests are being conducted on the TV personality’s body. These investigations are a part of the toxicology exam to determine whether the “Go On” star had consumed other illegal substances or if he took lethal doses of any prescription medication.