The parody site Panexa.com is apparently so well done that it fooled CafePress. Don’t miss the disclaimers, particularly those about squirrels. Said section begins:

PANEXA is a prescription drug that should only be taken by patients experiencing one of the following disorders: metabolism, binocular vision, digestion (solid and liquid), circulation, menstruation, cognition, osculation, extremes of emotion. For patients with coronary heart condition (CHC) or two separate feet (2SF), the dosage of PANEXA should be doubled to ensure that twice the number of pills are being consumed. PANEXA can also be utilized to decrease the risk of death caused by not taking PANEXA, being beaten to death by oscelots, or death relating from complications arising from seeing too much of the color lavender. Epileptic patients should take care to ensure tight, careful grips on containers of PANEXA, in order to secure their contents in the event of a seizure, caused by PANEXA or otherwise.