If it's got Zolp in it - and it's CR, you'd be busting the law to go near a car after using it let alone an aircraft. 12.5 I assume that's mg (what else?) That's one heck of a dose. 5mg should be enough to get one out of a tiredness loop.
Look at my post above. American figures for Ambien CR show a 300% increase in road traffic accidents in drivers starting their journey before mid day.
On my last script, I noticed it was part of the Benzodiazepine group. If I'd known this, I'd never have touched it in the first place. I can't believe it's misinformation as it was on the leaflet in the box.
In haste, I'll try to find more about this later.