Pharmacological Screening of Plants Recommended by Folk Medicine as Snake Venom Antidotes; IV. Protection against Jararaca Venom by Isolated Constituents1 - Pereira, Nuno A; Pereira, Bettina M Ruppelt; Nascimento, Maria Célia; Parente, José Paz; Mors, Walter B (Planta Medica, 1994)