The best replacement for nyquil is dayquil.

The best alternatives to nyquil are rated as following:
★★★★★  dayquil
★★★★  theraflu
★★★★  tylenol pm
★★★  tylenol
★★★  robitussin
★★★  benadryl
★★  tylenol cold
★  zzzquil
★  alka seltzer
★  mucinex
★  alka seltzer plus
★  sudafed
★  advil pm
  advil cold and sinus
  nyquil d
  alka seltzer cold and flu
  robitussin dm
  coricidin
  nyquil cough
  delsym

Your alternative for nyquil is not listed? Suggest!
Speaking about nyquil, one probably shouldn't forget about pseudoephedrine.

Other search terms related to nyquil and their ratings are:
★★★★★ pseudoephedrine
★★★★★ advil
★★★★ mucinex
★★★ sudafed
★★★ ibuprofen
★★ tamiflu
★★ mucinex d
★ mucinex dm
★ benadryl
★ amoxicillin
★ adderall
★ allegra
★ advil cold and sinus
azithromycin
You have in mind a companion for nyquil and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of nyquil in all years. Click on graph for more.
nyquil
dayquil
theraflu