No: HPFGUIDX 76640 > -Dan, who wonders what would have happened if Harry had drunk one of Umbridge's Veritaserum-overloaded drinks According to Dumbledore, Snape gave Umbridge fake Veritaserum. And I don't see the reason why Snape would wasted good precious truth potions for Umbridge. In his usual subtle way, Snape seemed to be anti-Umbridge as well. -D.