Am I right to be a bit concerned about this? My boyfriend and I travelled to the US. from Europe on a 9 hour flight. He's struggled with anxiety, ADHD so his psychiatrist prescribed him some extra diazepam to travel. He had two glasses of wine and took 5mg of valium. We arrived in the afternoon, met my parents and then they took us to a hotel as they didn't have enough space and we slept it off until the morning when we had breakfast.
It was only until the next morning that he said he had little recollection of what happened. I was a bit upset and concerned for him. As a nurse, I know that benzos and alcohol can cause blackout where a person appears functioning but is "not there". On the other hand, he says that he's been prescribed benzos and sleeping tablets and the doctor even said it was fine to take them with alcohol in low doses.