Gervinho said sorry after striking Naby Keita and will now miss his country's final Group D fixtures.
"I want to apologise to the Ivory Coast nation, my team-mates, the fans and the African Nations Cup organisers for this gesture of anger," he wrote on Twitter.
"It is not like me and it does not have its place on a football pitch."
Gervinho, 27, will now be unavailable for the Ivory Coast's up-coming games against Mali and Cameroon and will only feature again in the tournament if his side reaches the quarter-finals.
The former Arsenal forward appeared to slap Guinea defender Keita in the 58th minute of the match in Malabo in an off-the-ball incident.
Ivory Coast were a goal down at the time but fought back to earn a draw despite their numerical disadvantage.
