The Whites' striker has been handed the punishment for an incident involving Fulham's Fernando Amorebieta in February.
The ban comes as a result of the French-born player's involvement in an incident with Fulham defender Fernando Amorebieta in the club's 1-1 draw on 23 February.
Doukara appeared to bite the Spanish defender, who was booked for his reaction and later sent off, but no punishment was handed to the 24-year-old at the time.
However, after a lengthy review of the incident, the FA have announced in a statement on their website that Doukara has been banned for eight matches for his "violent conduct".
The statement read: "Souleymane Doukara will serve an eight-match suspension with immediate effect after he was found to have committed an act of violent conduct.
"The Leeds United forward was charged following an incident which occurred in the 54th minute of the game against Fulham on 23 February 2016.
"The breach of FA Rule E3, which the player denied at an Independent Regulatory Commission hearing on Wednesday [30 March 2016], was considered a non-standard case given the seriousness and both unusual and violent nature of the misconduct.
"Mr Doukara was also warned as to his future conduct and fined £5,000."
That suspension will virtually end Doukara's involvement in the rest of Leeds' season, with the forward only now eligible for the final-day clash at Preston North End.
After scoring seven times in 27 matches in his first season at the club last term, Doukara has again been far from prolific in the current campaign, netting just five times.
Perhaps as a result of that uninspiring form, the news of his suspension was met with a mixed reaction from Whites fans on Twitter.
There were some supporters who were not particularly bothered that the striker would be absent for the majority of the remainder of the season:
@PhilHayYEP At least we may get to see Wood and Nucci given a run of games...— Paul Scaife (@pss53) March 31, 2016
Others reacted by suggesting that the player should never feature for the club again:
@LUFC best news ever, now please just cancel his contract and get rid of the useless excuse of a footballer— Andy Tracey (@chaffaldhino) March 31, 2016
@LUFC sack him please, I don't want players like him playing for the club I support.— Peter (@PeterDaglish88) March 31, 2016
I'm hoping we'll have sold or sacked Doukara by the time his ban runs out, a disgrace to the white shirt, part of the sick-note six #lufc— Tom Raynor (@TOMLUFC1995) March 31, 2016
But in all seriousness, Doukara shouldn't play for #lufc again.— I'd Radebe Leeds (@Radebe_Leeds) March 31, 2016
Some chose to take the news on with a light-hearted outlook:
Doukara banned for 8 games for biting at least he now has something in common with Suarez #lufc— Foz (@chrisfozard) March 31, 2016
You have to admire the effort shown by Doukara to not play the last few games of a season. Stepped it up a notch this year, TBF.— Simon O'Rourke (@simon_orourke) March 31, 2016
@SkySportsNewsHQ Biting's becoming quite trendy in football these days— ⚽️ Goontang ⚽️ (@swinelord) March 31, 2016
And then there were the fans who were disappointed that Doukara was the only man suspended...