There was no publicly available information regarding prices within the public health services or social security institutions, as these are not included in the public sector medicine catalogues.

A rapid search of prices among private sector pharmacies (Metropolitan Area of Mexico City), where most people purchase them, given they are not usually covered by health or social security institutions, shows an average price for the main presentations of these four medications as follows:

1. Clorhidrato de donepezilo: a) PEZZIL (torrent): 5mg / 28 tablets: $1,450.- MXN (around $74 USD)  b) Eranz (Pfizer) 5 mg / 28 tablets $2,150.- (around $113.- USD),
2. Bromhidrato de galantamina: a) Reminyl ER (Jannsen-CILAG) 20.508 mg (equivalent to 16 mg of galantamine) / 14 capsules: 14: $1420 MXN (around $70.- USD),
3. Clorhidrato de memantina a) Menural (Apopharma) 10 mg / 28 tablets: $640.- MXN (around $32.- USD), b) Ebixa (Lundbeck) 20 mg / 28 tablets: $1,500.- MXN; c) Akatinol (Merz) 20 mg / 28 tablets: $1650.- MXN ($83.- USD),
4. Rivastigmina: Exelon patches (Novartis) 9.5 mg / 24 hours / 30 patches: $2,900.- MXN ($145.- USD).

Some pharmacies offer a discount of 5% for older adults if they are registered with INAPAM, the national older adults’ institute. In addition, some private insurance companies have agreements with pharmacies and so they offer discount for some medicines of 10% on average.