Patent ID: 8840875

Claim:
A method of treating viral infections in a mammal in need thereof, said method comprising administering to said mammal an effective amount of antiviral agents comprising guanidine-based poly (amido-amine) polymer of formula (I): wherein n is an integer between 3 and 400; R1 is H, C1-6 alkyl, or taken together with the N atoms to which is bound and R2 is a piperazinic ring; R2 is C2-6 alkylen, C5-6 cycloalkylen, CH—COOH, CH—COOR, wherein R is C1-4 alkyl, phenyl or benzyl; R3 is —(CH2)p-HN—C(NH2)=NH, wherein p is an integer 1 to 6; or salt thereof.