South African Brits, an influential figure behind Saracens' first Aviva Premiership title success last season, was cited following the tackle on Treviso wing Benjamin de Jager at Vicarage Road.
Brits pleaded guilty to the offence at a disciplinary hearing Wednesday night, when Saracens chief executive Edward Griffiths made submissions on his behalf.
Independent judicial officer Rod McKenzie upheld the citing complaint, decided it was at a mid-range level of seriousness with an entry point of six weeks.
But after taking into account Brits' guilty plea, clean record and remorse, McKenzie reduced the punishment by 50%.
Brits, who has the right of appeal, can play again on December 8, meaning he will miss Saracens' Heineken Cup clash against Biarritz on Saturday, followed by Premiership appointments with Northampton and London Irish.
Edinburgh forward Sean Cox has been banned for a week after he admitted striking London Irish and England centre Shontayne Hape during last weekend's Heineken Cup clash.
Cox was cited following the second-half incident, and that complaint was upheld today by independent judicial officer Robert Williams.
Williams decided the offence was low-end in terms of its seriousness level, with a two-week entry point, which he then reduced by 50% after taking into account Cox's guilty plea, clean record and demonstration of remorse.
Cox is free to play again on November 24, meaning he is unavailable for Edinburgh's Heineken Cup appointment with Racing Metro at Murrayfield on Friday night.