| Business | Phone |
| Pfizer 5420 Lyndon B Johnson Fwy, Dallas 75240 | (972) 233-8033 |
| Pharmaceutical Research 5499 Glen Lakes Dr, Dallas 75231 | (214) 891-0062 |
| Select Distributors 2608 Perth St, Dallas 75220 | (214) 350-8484 |
| Siembien Pharmaceuticals 9995 Monroe Dr, Dallas 75220 | (214) 350-7344 |
| Syncor International Corp 7920 Elmbrook Dr 100, Dallas 75247 | (214) 630-5080 |
| Glaxo Inc 14785 Preston Rd, Dallas 75254 | (972) 851-7424 |
| Senior Rx Support Inc 12240 Inwood Rd, Dallas 75244 | (972) 387-0427 |
| Wyeth-Ayerst Laboratories 11240 Petal St, Dallas 75238 | (214) 341-2299 |
| Cardinal Health 4217 Mint Way, Dallas 75237 | (214) 339-3744 |
| D & M Distributors 1930 W Airfield Dr, Dallas 75261 | (972) 586-0525 |
| Propharma Inc 5552 Drane Dr, Dallas 75209 | (214) 956-9316 |
| Ringer Lilly & Co 4320 Stanhope St, Dallas 75205 | (214) 599-9331 |