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FDA Approval Activities for this Drug… Tysabri (natalizumab) IV, Biogen Idec, Incorporated, Supplement ^ FDA's latest approval appears at the bottom of this list. ^   ACCUTANE | ARAVA | BEXTRA | CELEBREX | CRESTOR | MERIDIA | NEURONTIN | OXYCONTIN | PERMAX PROPULSID | REMICADE | REZULIN | SEREVENT | SERZONE | TAMOXIFEN | TYSABRI | VYTORIN | ZYPREXA A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U-Z Health Topics | News Feed for each API | DMF Index | Pharma Job Search | Pharma Company News © 2008 Betterchem Corp.