The best replacement for promethazine is phenergan.

The best alternatives to promethazine are rated as following:
★★★★★  phenergan
★★★★★  codeine
★★★★  zofran
★★★  meclizine
★★  hydroxyzine
★★  diphenhydramine
★★  hydrocodone
★★  benadryl
★★  dramamine
★★  ondansetron
★  prochlorperazine
★  cheratussin
★  compazine
★  cheratussin ac
★  guaifenesin
★  guaiatussin
★  doxylamine
★  hydromet
  tussionex
  vistaril
  cyclizine

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

Other search terms related to promethazine and their ratings are:
★★★★★ codeine
★★★ codeine syrup
★ codeine cough syrup
★ dextromethorphan
★ codeine actavis
codine
dextromethorphan cough syrup
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You have in mind a companion for promethazine and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of promethazine in all years. Click on graph for more.
promethazine
phenergan
codeine