DWQA Questions › Tag: extract of Echinacea purpureaFilter:AllOpenResolvedClosedUnansweredSort byViewsAnswersVotesIs Coryza Forte from Progressive Laboratories, which is a mix of vitamins, bioflavonoids and extract of Echinacea purpurea, effective enough as an antiviral to merit inclusion in our Antiviral Regimen?ClosedNicola asked 8 hours ago • Healing Modalities4 views0 answers0 votes