Sep. 6, 2012 at 10:59 AM ET
Updated, 6:43 p.m. ET: After a brief health scare earlier Thursday, former "NBC Nightly News" anchor Tom Brokaw was back on camera at the Democratic National Convention.
Brokaw was taken to a Charlotte, N.C., hospital earlier Thursday after mistakenly taking a sleeping pill instead of an aspirin.
"I am fine. It's a cautionary tale," Brokaw told NBC Nightly News anchor Brian Williams. "Know what you ingest. I have a daughter who's a doctor, and I'll be paying penance for a long, long time."
Brokaw was discharged later the same day and was in "great health," NBC News President Steve Capus said Thursday.
"We're immensely grateful to the team at Carolinas Medical Center for their excellent care and professionalism," Capus said in a statement.
Earlier, the network said that Brokaw "felt light-headed" on the set of the MSNBC talk show "Morning Joe," and was taken to the hospital "out of an abundance of caution."
Brokaw, 72, was said to be in good spirits while at the hospital, and even joked about his condition on Twitter, writing, “All is well. Early AM I mistakenly took a half dose of (sleep aid) Ambien and made less sense than usual. Made a better comeback than Giants...”
Chris McCumber, the co-president of USA Network, tweeted in reply, "Glad ur feeling better. We need you to suit up next Sunday to play D for #NYGiants."
Brokaw, who served as anchor and managing editor of "NBC Nightly News" from 1982 to 2004, is the author of numerous books, including 1998's acclaimed, "The Greatest Generation."