Robitussin EX provides symptomatic relief from congested chest and cough due to a cold. Robitussin EX contains Guaifhenesin expectorant, which increases the flow of natural secretions along the lower respiratory tract. Has a thinning effect, helps relieve and cure cough. Weakens and facilitates chest overload. Does not cause drowsiness. Sugarless. Volume: 100 ml Tags: pharmacy, treatment