Here's a hypothesis to check out:
The generic name of every commercial drug advertised on TV has five syllables.
Evidence...
Skyrizi = ri-san-ki-zu-mab -rzaa
Why are the i's dotless? What does the suffix "-rzaa" mean? How is it even pronounced?
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Sunosi = sol-ri-am-fe-tol
The "i" in Sunosi doesn't have a dot either. Is this drug too made in the land of the dotless i, Turkey?
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Humira = a-da-li-mu-mab
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That's only three examples so far. To accumulate more data, be on the lookout for other TV drug commercials that list generic drug names.
https://en.wikipedia.org/wiki/Generic_drug
https://en.wikipedia.org/wiki/Drug_nomenclature#Generic_names_and_affixes
Drug nomenclature is the systematic naming of drugs, especially pharmaceutical drugs. In the majority of circumstances, drugs have 3 types of names: chemical names, the most important of which is the IUPAC name; generic or nonproprietary names, the most important of which are the International Nonproprietary Names (INNs); and trade names, which are brand names. Under the INN system, generic names for drugs are constructed out of affixes and stems that classify the drugs into useful categories while keeping related names distinguishable. A marketed drug might also have a company code or compound code.