The best replacement for delsym is robitussin.

The best alternatives to delsym are rated as following:
★★★★★  robitussin
★★★★★  mucinex
★★★  nyquil
★★  delsym dm
★  zicam
★  robitussin dm
★  dimetapp
★  coricidin
★  triaminic
  triple c's
  tussin
  mucinex better
  tessalon pearls

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

Other search terms related to delsym and their ratings are:
★★★★★ mucinex
You have in mind a companion for delsym and it is not yet here? Propose!



Google Trends

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delsym
robitussin
mucinex