Methods and dosage formulations for the safe treatment of cold, cough, flu, and sinus symptoms in children and adolescents by age and nature of symptoms, and adults and the elderly by age, nature of symptoms, and concomitant patient medical conditions. The method of the present invention comprises the formulation of a cold medication which consists essentially of combinations of a nonsedating or minimally sedating antihistamines with pain relievers and the expectorant, guaifenesin.