At the end of the episode when all the characters are toasting with champagne, the foam in Brenda's glass is alternately more, then less, then more, then less as the camera switches between characters.
It is repeatedly stated that versed (Midazolam} is not available by prescription. Even when given in a hospital environment, there is an order for the medication which is effectively a prescription. This is necessary for both control and billing purposes. Also, versed is available as a nasal spray prescribed for epilepsy.
The episode open interviews a doctor that claims; "Versed is an anesthetic, not available by prescription." The brand name Versed has been discontinued. The generic (midazolam hydrochloride) remains available and as of 2010 was the most prescribed benzodiazepine in the US.