(Adds company statement about investigation, paragraphs 3,4)
By Jonathan Stempel and Manas Mishra
NEW YORK, Jan 18 (Reuters) - Gilead Sciences Inc said an unauthorized network of drug distributors and suppliers sold pharmacies more than $250 million of counterfeit versions of its HIV treatments over the last two years, endangering patients.
The drugmaker said it found 85,247 bottles that had been tampered with or faked, including versions of its Biktarvy and Descovy treatments.
In a separate statement on Wednesday, Gilead said it has seized the bottles of Gilead-labeled medication from 17 locations in nine states as part of its investigation.
The investigation also uncovered unauthorized pharmaceutical distributors who were selling the drugs to pharmacies, Gilead said.
Gilead said on Tuesday counterfeiters used authentic, but often empty or near-empty, bottles that once contained its HIV medication.
It said the counterfeiters then substituted fake tablets and documentation, and resealed the bottles so they would "resemble" unopened, authentic bottles.
The alleged scheme was reported earlier by The Wall Street Journal.
Gilead disclosed its anti-counterfeiting efforts on the same day a federal judge in Brooklyn unsealed a related civil lawsuit that the Foster City, California-based company filed last July.
Gilead warned the public https://www.gilead.com/news-and-press/company-statements/gilead-warns-of-counterfeit-hiv-medication-being-distributed-in-the-united-states about HIV counterfeits on Aug. 5, two weeks after filing the lawsuit under seal.
The company accused 22 defendants of violating federal trademark and New York consumer protection laws for their roles in the distribution of "dangerous" counterfeits to "unsuspecting patients, placing the patients' health and lives at risk."
Gilead said a common counterfeit was an anti-psychotic drug that often causes drowsiness, where tablets were six times more potent than the U.S. Food and Drug Administration recommended for some patients.
It said one patient who unknowingly took that drug after receiving a fake bottle of Biktarvy reported being unable to speak or walk afterwards.
The lawsuit seeks, among other remedies, the seizure of counterfeit drugs, in addition to court-ordered seizures that have already occurred.
Global sales of its HIV treatments totaled $4.19 billion in the quarter ending Sept. 30, 2021, including $2.71 billion of Biktarvy and Descovy.
Lori Mayall, Gilead's top anti-counterfeiting executive, said the presiding judge in its lawsuit ordered the defendant distributors to stop selling Gilead-branded medications, and the company was unaware of any defendant violating that order.
"We therefore believe that we have successfully stopped any additional counterfeits from these defendants reaching patients," Mayall said in a statement. (Reporting by Jonathan Stempel in New York and Manas Mishra and Jahnavi Nidumolu in Bengaluru; editing by Rosalba O'Brien and Jason Neely)