And I presume you did a search already..?

You can purchase Levitra for only $10.15 per pill at one of the pharmacies near Farmacia Castaneda just across the border.  Sorry that I forget the pharmacy's name, but it's practically next door to Castaneda.  I found Levitra to be much more effective than Viagra or Cialis, and Levitra had no side effects for me.  Good luck.

You might try a search on the TJ board.  There are some threads about the best places to buy Viagra, etc. in TJ on the board.  In general, the pharmacies immediately across the boarder (such as Medicine Depot, Castenadas, etc.) sell viagra for about $15.00 a pill without a perscription.  I've never tried buying levitra so I can't give you information about it.  My guess is that you wouldn't have too much trouble finding it without a perscription as there is a lot of demand for viagra type products in TJ.