Zyrtec Plus (also known as Cirrus) is a combination medication containing 5 mg cetirizine dihydrochloride and 120 mg pseudoephedrine hydrochloride. This prescription medication comes in a pack of 14 tablets and is manufactured by GSK for treating allergy symptoms with nasal congestion. This medication combines an antihistamine (cetirizine) to relieve allergy symptoms with a decongestant (pseudoephedrine) to reduce nasal congestion. As a prescription medication, it should only be taken under the direction of a healthcare provider who can determine appropriate dosing based on individual patient factors. The medication should be stored at room temperature away from moisture and heat.