Dr. Sameer Awadhiya MBBS , Pediatrics

No, Dextromethorphan + Phenylephrine + Guaifenesin is not a steroid. It is related to codeine and is a non-opioid derivative of morphine. It is an antitussive which is used for managing the dry cough. 

Dr. Saurabh Dhamdhere MBBS , Orthopedics

You should use Dextromethorphan + Phenylephrine + Guaifenesin for as long as it is prescribed by your doctor or till you feel a relief in your symptoms. Dextromethorphan + Phenylephrine + Guaifenesin is a prescription drug, and it is best to take it under medical supervision.

Dr. Braj Bhushan Ojha BAMS , Gastroenterology, Dermatology, Psychiatry, Ayurveda, Sexology, Diabetology

Yes, rarely, Dextromethorphan + Phenylephrine + Guaifenesin may cause an allergic reaction with symptoms like difficulty in breathing, itching, swelling on lips and mouth, etc. If you suffer from any of these symptoms, consult your doctor immediately. 

Dr. Mayank Yadav MBBS , General Physician

Yes, you may discontinue taking Dextromethorphan + Phenylephrine + Guaifenesin on your own when you feel that a cough has subsided. However, if the symptoms do not improve even after taking Dextromethorphan + Phenylephrine + Guaifenesin for about 7 days, consult a doctor immediately.

Dr. Vinod Verma MBBS , Diabetology

Dextromethorphan + Phenylephrine + Guaifenesin is related to codeine and is a non-opioid derivative of morphine. From gastrointestinal tract it passes into the bloodstream, crosses the blood-brain barrier and suppresses the cough center, bringing relief to the patient.