Well, I looked everywhere online, and Mytelase is very difficult to get hold of, unless you travel to France and buy it there like FloppyBanana
As Mytelase is a Acetylcholinesterase inhibitor, maybe another drug in the same class would have a similar effect?
Rivastigmine (Exelon), Donepezil (Aricept) and Galantamine (Razadyne) are all available on prescription as anti-Alzheimers medication.