French Rugby Federation (FFR) president Pierre Camou announced at a press conference the French Anti-Doping Agency (AFLD) had informed him Huget had failed to reveal his whereabouts for tests on three occasions, L'Equipe reported.
The 24-year-old Bayonne player has voluntarily withdrawn from the squad to avoid causing disruption.
"There are difficult moments in the career of a president of the federation," Camou was quoted by L'Equipe as telling a news conference.
"This one is one. I received a statement of the alleged violation from the AFLD with three warnings for breach of location.
"Yoann Huget took a courageous stand. He himself decided to withdraw from the group."
Camou added: "It is a problem with regard to the regulations, nothing to do with a banned substance."
Huget explained the three warnings, saying: "Once I completed the wrong location on my form. The second time I was with the France team before the game against Wales and the third I had a photo shoot at the last minute."
Coach Marc Lievremont will not call up a replacement.
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