The drugs and antibotics are always much needed and they are the hardest to get. Something for tourist to keep in mind. When I was coming on my first trip here I emailed the vet and asked what was needed most. She sent me a list. A lot of the items needed to be obtained from a vet. My vet did not just want to hand over drugs on such short notice. I now have a system set up with him. The vet can write a prescription for the needed drugs and he can verify that with her via email. He then allows me to pay for them and pick them up. I wanted to just give money for the needed drugs but it was explained to me that is not the easiest way for them because of shipping and duties and such. So if you are visiting talk to your vet before hand ask if this an option. A lot of rescue groups keep huge stashes of antibiotics on hand so that may be another way to go. Of course anything you bring will be a help.
This trip I brought a lot of dog and cat collars, toys, leashes and such. They were so appreciative and they allowed me to pass out toys. Lauries dog had his head in the bag before I could get in the door and had a tennis ball bouncing around the clinic in no time.