The products include Defend Cold and Cough, Defend Cold and Cough Night, Defend Sinus, for adults and Baby Cough Syrup.
The natural formulations are non-drowsy and do not contain dyes, alcohol and sugar, the company said.
Defend Cold & Cough soothes symptoms including nasal congestion, cough, sore throat and sneezing.
Defend Cold & Cough Night is a liquid formula which provides relief from cold symptoms as well as sleeplessness.
Defend Sinus quick-dissolving tablets are formulated to relieve symptoms of sinus pressure, headache, nasal congestion, sinus pain and fever associated with colds or allergies.