Compare Robitussin vs. Delsym
Head-to-head comparisons of medication uses, side effects, ratings, and more.
Robitussin (Guaifenesin) is a useful medicine for loosening congestion in your chest and throat, but it doesn't last as long as other guaifenesin products.
Delsym (Dextromethorphan) is a good option for treating dry cough. It's not safe to take with MAO inhibitors though.
- Robitussin (Guaifenesin) reduces the thickness and amount of mucus in your throat and chest.
- It’s available at the drugstore either by itself or in combination with other medications to treat cold and flu symptoms.
- Available in multiple forms.
- Can be used in children 12 years and older.
- Good for treating dry cough.
- Available in drugstores either by itself or in combination with other medications to treat cold and allergy symptoms.
- Available as a liquid and a tablet.
- Some products relieve cough for up to 12 hours.
- Robitussin (Guaifenesin) doesn't last as long as other products that contain guaifenesin. Mucinex's extended release form lasts 12 hours and Robitussin (Guaifenesin)'s lasts 8 hours.
- You need to drink a lot of fluids while taking this medication or it won't work as well.
- Robitussin (Guaifenesin) isn’t useful if you have a dry cough.
- Can cause nausea, headache, and an upset stomach.
- Can't take dextromethorphan if you're taking MAO inhibitors (drugs used to treat Parkinson's disease, depression, and other emotional conditions). If taken together, they will cause dangerously high blood pressure levels.
- If you're taking this in combination with other cold and allergy medications, you should read labels closely to make sure you're not accidentally taking too much of a single ingredient.
- Liquid extended release
- Nausea and vomiting
- Serotonin syndrome
- Using other medications that affect serotonin