Muqdad held talks in the morning at the foreign ministry in Moscow, foreign ministry spokesman Alexander Lukashevich said, adding that the results would be announced later in the day.
“The meeting has taken place. We will announce the results later,” he told reporters.
“This is of course a part of the efforts we are undertaking to encourage dialogue not just with the government but all opposition forces,” he added.
It was not immediately clear who was present at the closed-door meeting but the ITAR-TASS news agency on Wednesday said Muqdad’s visit would include talks with Foreign Minister Sergei Lavrov.
The meeting came amid a flurry of end-of-year diplomacy in Russia over the Syrian crisis that will also see talks between U.N.-Arab League Syria peace envoy Lakhdar Brahimi and Lavrov on Saturday.
Egyptian Foreign Minister Mohamed Amr is also arriving in Moscow later on Thursday for a visit that will include talks and a news conference with Lavrov on Friday.
Russia has to the fury of the West refused to cut cooperation with the Syrian regime of President Bashar al-Assad in the conflict that according to activists has now claimed over 45,000 lives.
The diplomatic drive comes amid Western media reports of a new Russia-US initiative that would see Assad stay in power until 2014 while preventing him from further renewing his mandate.
But Lukashevich vehemently denied the existence of any such plan.
“There was not and is not such a plan and it is not being discussed,” he said, adding that Russia’s Syria policy was still based on an accord with world powers made back in June for an inter-Syrian dialogue.
Russia has always insisted it will not prop up Assad’s regime but has also emphasized Moscow will not seek to persuade the Syrian president to step down, saying it is up to the Syrian people to decide the country’s future.
Meanwhile, international peace envoy Lakhdar Brahimi on Thursday called for “real” change in war-torn Syria and the installation of a transition government with full powers until elections can be held.
The U.N.-Arab League envoy made the remarks at a news conference in Damascus, during his latest bid to persuade Syria’s warring parties to negotiate an end to the conflict estimated to have killed at least 45,000 people.