Yes. It is important to always take an adequate supply of medications with you. You should not travel to 3rd world countries or be exposed to poor sanitary conditions as your anti-rejections medications make you susceptable to infection.
Take meds with you. Travel is a major advantage of successful transplantation. Bring several extra days supply of medications to accommodate the unpredictability of flights, etc. Never pack the meds in the suitcases that you surrender to the airlines - if the bags are lost, you will have a major problem. Avoid excessive sun exposure. Avoid unsanitary food conditions. Send a postcard to txp team. Have a great trip!