Abstract: A medicinal preparation useful for treating viral diseases and for prophylaxis of various diseases—including zoonotic diseases—along with methods of using the same, is described. The preparation comprises a fine crystalline antimony silicate-based sorbent of the compositional formula xA2O.ySb2O5.zSiO2, wherein x is between 0.5 and 3, y is between 0.5 and 1.5, z is between 0.5 and 4; and A is H, Na, K, Rb, Cs. The sorbent particles are between 0.1 and 100 ?m in diameter. Between 100 and 120 mg/kg of sorbent may be administered intravenously, intramuscularly, or orally (e.g., via capsules).