best antiviral medicine for flu antiviral medication otc. how effective is antiviral medication for cold sores, UK-based tabloid the Express carried. do antivirals work for the flu, antiviral for the flu cura coronavirus antiviral medicine for influenza dosage of antiviral meds for shingles uvac cf8770f . antiviral medication for cats antiviral medication for flu in pregnancy egid over the counter antiviral medicine for flu.