I agree that abuse is required for blackout, but any use other than compliant with a prescription is, by definition, abuse.
I couldn't disagree more strongly with the second and third statements, however. My mother was a fall-down, incoherent drunk nearly every night for most of her adult life. She also was a respected drug and alcoholism treatment counselor. NONE of her friends or colleagues knew of her addiction. She was viewed as a rarity in her field--an expert who did NOT know the ravages of the disease first-hand.
They were flabbergasted when, after a surgery, she experienced DTs and segued into alcoholic dementia that she never recovered from. Just floored.
Don't assume that people would know. Women, especially, can be very wily concealers of addictions. There is abundant clinical literature to back this up.
Xanax in an of itself doesn't really produce noticeable behaviors in normal doses--other than sleepiness. It is a benzodiazepine tranquilizer; a pressured chatterbox (described her as annoyingly chattery) like Casey might just mellow down to a tolerable level with a bit of Xanax.
