I have been a patient of Dr Lastra since I injured my back several years ago. He is a licensed pain specialist, works with a Dr. in Guadalajara and is a very good doctor. He can provide any opiate pain medication and have it delivered to his office. Will you pay a bit more, yes but to pick up medication in Guadalajara would easily cost 500Mx. He speaks perfect english. I had fallen cut my hand open and he arrived at my house within an hour to stitch it up. A Dr. that makes house calls?