Diamondbacks pitcher Brandon McCarthy, who last season required emergency surgery after being hit in the head by a line drive, had a seizure last week and is now taking anti-seizure medication.

McCarthy, who is on the disabled list with shoulder inflammation, said he is feeling no ill effects of the seizure, which occurred Monday while he was dining out with his wife.

"It's something you get through, and now we know a little more about it," McCarthy said. "There was always a chance of it happening. Any time you have a bruise on your brain, it doesn't actually ever heal, which always leaves you somewhat vulnerable to it. So we knew the possibility was there, but we hoped we'd gotten past that."

Last Sept. 5, McCarthy was struck in the head by a line drive while pitching for the Oakland A's. He suffered an epidural hemorrhage, brain contusion and skull fracture but was cleared to resume playing baseball in the offseason. He signed a two-year contract with the D-backs during the winter and showed no signs of hesitation returning to the mound during spring training.

McCarthy went on the disabled list June 1 in Chicago and returned to Phoenix the following day. The next night, he was out to dinner with his wife when he suddenly slumped over as the seizure hit. McCarthy said he blacked out during the episode.

"I was eating dinner, and the next thing I knew someone was telling me that I'd had one," McCarthy said. "So I didn't feel it coming."

McCarthy was rushed to the Mayo Clinic in Scottsdale, where a CT scan confirmed he'd had a seizure. There was also concern McCarthy had hit his head during the seizure and could require another surgery.