Gutierrez, 29, has been out six weeks now since incurring a concussion when he was hit in the head with a pickoff throw. He'd been working out the past few days with Everett after Triple-A Tacoma went on the road and the club felt he was ready to begin playing games until the headaches returned.
"Now we've got to put the brakes on again, so that's disappointing," Wedge said. "He's going to see the specialist again tomorrow. Maybe they have to change the medication. We'll see."
Gutierrez has played just 12 games this season after originally being sidelined by a partially torn pectoral muscle, then landing back on the disabled list with the concussion. He hit .267 in 45 at-bats and was looking more like the 2010 Gold Glove center fielder when he got hurt again.
Wedge said he hopes Gutierrez can play Winter Ball this offseason but hasn't given up on this season.
"Right now I just want to focus on hopefully getting him back for some period of time this year," Wedge said. "He just makes such an impact on our club. We've had a couple games this road trip where if we have a different outfield, we probably win.
"And the impact he makes in our lineup as a right-handed bat with some experience that you can really hit anywhere, I value that. The fact he can hit anywhere in the lineup, has a little pop, a pretty good hitter. In just a short period of time, you saw the impact he had on our club."