What is Ru-Tuss Jr. (Guaifenesin Pseudoephedrine)? Guaifenesin is an expectorant. It helps loosen congestion in…
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Ru-Tuss Jr. .
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What is Ru-Tuss Jr. (Guaifenesin Pseudoephedrine)? Guaifenesin is an expectorant. It helps loosen congestion in…