(P) Parasitology Alphabetical listing of top corporations active in this therapy class. Rank is based on pharmacy sales for 1997 in ten of the leading world markets.* Rank Corporation 5 Allergan 14 Block Drug 12 Bristol-Myers SQB. 11 Copley 8 Hoechst 4 Johnson & Johnson 3 Pfizer 13 Rhone Poulenc 2 Roche 9 Sanofi 6 Seton 15 Sintofarma 10 Smithkline Beecham 16 Virtus 1 Warner-Lambert 7 Zeneca Navigate: Industry Resources Corporations by therapeutic class: - (A) - (B) - (C) - (D) - (G) - (H) - (J) - (M) - (N) - (P) - (R) - (S)   Navigate: Home Page