The story
Probably blend of du(a)l + fluoxetine.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A drug that functions as an SNRI and is administered orally in the form of its hydrochloride C₁₈H₁₉NOS·HCl especially to treat depression, anxiety, and chronic pain (such as that associated with fibromyalgia and peripheral neuropathy). It is marketed under the trademark Cymbalta. Full definition →
Probably blend of du(a)l + fluoxetine.
Etymology from Wiktionary, CC BY-SA 4.0.