The 45-year-old Wedge was hospitalized Monday when he complained about light-headedness during batting practice.
He missed the entire three-game series against Cleveland, but after a battery of tests was sent home from the hospital Wednesday afternoon, the Mariners said in a statement.
"We are happy to announce that Eric Wedge has been released from the hospital," the statement said. "He is home with his family resting and feeling well.
"After much testing the doctors believe he suffered a very mild stroke. The doctors expect that he will have a full and complete recovery."
Wedge, the Mariners manager since 2011, won't be in uniform for the Mariners' upcoming four-game series against Minnesota and he won't go on the next road trip to Boston and Baltimore.
"What he needs to do is stay home for a short period of time. We expect him to be back sooner than later," general manager Jack Zduriencik said. "He's excited. He sounds normal. I talked to him and it sounds like everything is fine and he is ready to roll.
"We are going to err on the side of caution, and I think the common sense thing is to have Eric rest. It makes sense that he doesn't take this trip to the East Coast."
Zduriencik said Wedge will be evaluated further the next 10 days.
Bench coach Robby Thompson will continue to fill in for Wedge, who was the Indians' manager from 2003-09.
"I'm sure there is a lot of concern out there," Thompson said. "Eric is a very caring man and loves every one of those guys in that clubhouse. I think they have that in return for him."
Zduriencik and Thompson addressed the team and provided an update on Wedge after the Mariners' 10-1 loss to Cleveland on Wednesday.
"Any situation like this that arises, there is concern," Thompson said. "We put our hearts, thoughts and prayers into him and Kate and their extended families.
"Fortunately, it was a mild stroke but from here they know what to work with and what to do with him to work his way back."
Seattle shortstop Brendan Ryan stressed that Wedge should take his time and not try to rush back to the dugout.
"Come back in his own time," Ryan said. "We will be thinking of him and he will be with us, so the sooner he gets back the better.
"We just wish him the best, speedy recovery."
Wedge has been a staunch supporter of many of the Mariners' younger players, and now they are offering their support to him.
"It's not just me. It's a lot of guys in here," first baseman Justin Smoak said. "A lot of guys, and he's stuck with us a long time now. He's going to get through this, and we look forward to have him back."
The loss Wednesday was Seattle's first since July 12 and it ended the Mariners' season-high, eight-game winning streak.
Cleveland's Scott Kazmir allowed just one hit in eight innings, Michael Bourn hit his first career grand slam, and the Indians salvaged the final game of the three-game series.
The only hit Kazmir (6-4) gave up was a clean leadoff single to center by Smoak in the fifth. Kazmir struck out seven, walked two and allowed an unearned run.
"He was a different pitcher than in Cleveland," Thompson said of Kazmir, who allowed five runs and seven hits in three innings against the Mariners on May 20. "He looked like he was the old Kazmir.
"Great life on his fastball, location and command of it. That made his secondary stuff even better. Velocity was probably up 4-to-5 mph from when we saw him in Cleveland."
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