Federal rules prohibit the use of outdated drugs in this way. Samples are also not intended for this purpose but may be used if complete treatments can be provided. Boxes of assorted samples of medications should not be left as donations. A better solution to your problem is to contact MAP International (Medical Assistance Programs) This is a nonprofit, Christian relief and development organization based in Brunswick, Georgia. MAP can provide in-date and appropriate medicines for this purpose at a reasonable cost through their “Medicines for Missions” program. You can receive their guidelines and an application through their website at www.map.org