The best replacement for infusion is transfusion.

The best alternatives to infusion are rated as following:
★★★★★  transfusion
★★★★★  injection
★★★★  decoction
★★  bolus
★★  tea
★★  imputation
★  biosilk
★  blood transfusion
★  tincture
★  perfusion
★  self injection
★  divine insight
★  decoction mash
★  iv push
★  twist of fate
★  intravenous
  bolus 5-fu
  tisane
  hydration
  maceration
  divine insight shadow
  biosilk silk therapy
  kate bush
  iron injection
  bolus injection
  technology integration
  technology diffusion

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

Other search terms related to infusion and their ratings are:
★★★★★ paracentesis
★★★ reclast
★★ keratin
★ dextrose
You have in mind a companion for infusion and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of infusion in all years. Click on graph for more.
infusion
transfusion
injection