Lisa Rinna reportedly suspects she was drugged at “The Traitors” Season 4 premiere party on Jan. 8.

Rinna’s “Traitors” castmate Colton Underwood first became concerned when he noticed she was “completely inebriated” at the party, even though she hadn’t had that much to drink, sources told TMZ.

He then notified her team, who took her out of the party, the outlet reported.

It’s unclear if police were called or if Rinna went to the hospital.

Page Six has reached out to reps for Rinna and Underwood, as well as reps for NBC, for comment, but didn’t hear back immediately.

Rinna and Underwood were at odds during “The Traitors,” with Rinna confronting him when they reunited to film the reunion earlier this month.

Sources told Page Six that Rinna, 62, pressed Underwood, 34, about his use of the word “hostage” while discussing her — a Traitor — during the season.

While our informants claimed Underwood stormed off the set in a huff, one source insisted it was more of an upset walk-off that happened in tandem with a planned break.

We’re told he returned to the set after getting some air and drinking water.

Last month, she also labeled Underwood a “stalker” after learning about his past restraining order scandal.

Rinna left the shady comment on a threads post, in response to a fan mocking Underwood for accusing her of being a Traitor on an episode of the Peacock series.

“This is who Colton thinks he’s slick up against? GOOD LUCK BUDDY,” the fan wrote alongside an image of Rinna delivering her iconic “Were people doing coke in your bathroom?” line from Season 7 of “The Real Housewives of Beverly Hills.”

Rinna responded, “Let’s talk about you being a stalker….” as if she were talking to Underwood.

Underwood’s ex Cassie Randolph requested a restraining order against him — accusing him of stalking and harassing her — in September 2020. The exes, who met on ABC’s “The Bachelor,” dated for less than two years before they decided to call it quits in May 2020.

Although a judge signed off on the temporary restraining order against Underwood, Randolph eventually decided to drop the restraining order in November 2020.