U.S. doctors online nowAsk doctors free
A female asked:

Can you take nyquil 4 hours after taking robitussin (guaifenesin) cough and cold?

1 doctor answer2 doctors weighed in
Dr. Lori Semel
Pediatrics 36 years experience
Yes: Robitussin (guaifenesin) cough and cold is a 4 hour medication. No problem to take the Nyquil before bed.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jun 17, 2021

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.