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FDA Approval Activities for this Drug… Tysabri (natalizumab) IV, Biogen Idec, Incorporated, Supplement | Tysabri (natalizumab) Injection, Biogen Idec, Inc., Supplement | Tysabri (natalizumab) Injection, Biogen Idec, Inc., Supplement ^ FDA's latest approval appears at the bottom of this list. ^                                                                       A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U-Z Health Topics | For Industry | DMF Index | Pharma Job Search | Pharma Company News | Best Phone © 2012 Betterchem.com