Robitussin is prescribed to temporarily reduce cough caused by colds and flu by decreasing brain activity that causes coughing. It comes in liquid, capsule, strip, and lozenge forms. Allegra relieves seasonal allergy symptoms like runny nose and watery eyes by controlling antihistamines in the body. It does not cure allergies. Cipro treats bacterial infections and prevents anthrax exposure by killing bacteria and should be taken as directed without dairy or calcium juice.