Two-time 200m World Championships bronze medallist, Wallace Spearmon Jr of the United States, is refusing to believe the sprint queen would take any such substance and remains resolute in support for her.
"I wake up to this ... I know for a fact she wouldn't do anything like that," Spearmon posted on Twitter.
Sanya Richards-Ross was among those left in shock. "So hard for me to believe the news of VCB. She's always been so talented! Really respect her as one of the greats," said Richards-Ross as she added the hashtags #HeartBroken, #PrayItsNotTrue.
St Kitts and Nevis veteran runner, Kim Collins, came out in support of his fellow sprinter, sending her a tweet. "@VCampbellBrown my friend, we love you. Continue to hold your head high. This too, shall soon pass."