Reference
Where these five were found
None of these slips appeared from a hat. These are the benches that made the molecules, and the regulators that later boxed them.
Bayer AG (Wuppertal)
Aprather Weg 18a, 42113 Wuppertal, Germany
Where chemists synthesised ciprofloxacin in 1981 and built the fluoroquinolone into one of the most-prescribed antibiotics in the world.
F. Hoffmann-La Roche
Grenzacherstrasse 124, 4058 Basel, Switzerland
The Basel laboratories that developed isotretinoin (13-cis-retinoic acid) and brought Accutane to market in 1982.
Former Pfizer Discovery Laboratories
Ramsgate Road, Sandwich, Kent CT13 9NJ, United Kingdom
The Kent site where sildenafil (UK-92,480) was trialled for angina before its unexpected side effect rewrote the whole programme.
ICOS Corporation (historic)
22021 20th Avenue SE, Bothell, WA 98021, USA
The Washington biotech that discovered tadalafil and partnered with Eli Lilly to launch Cialis.
Bayer AG (Leverkusen)
Kaiser-Wilhelm-Allee 1, 51373 Leverkusen, Germany
Bayer's headquarters campus behind vardenafil, later sold as Levitra and the orodispersible Staxyn.
U.S. Food and Drug Administration
10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
The regulator whose prescribing information, black-box warnings and the iPLEDGE REMS anchor the doses and cautions quoted across this desk.
European Medicines Agency
Domenico Scarlattilaan 6, 1083 HS Amsterdam, Netherlands
Our Amsterdam neighbour, whose fluoroquinolone safety review helped tighten how ciprofloxacin is used across Europe.
World Health Organization
Avenue Appia 20, 1211 Geneva 27, Switzerland
Keeper of the Model List of Essential Medicines, which carries ciprofloxacin among its core global antibiotics.
Why origin still sits on a slip
A fluoroquinolone born for Gram-negative reach explains both the 250 mg utility and the tendon-and-aorta boxes that later piled on. Vitamin-A chemistry explains why 10 mg Accutane can clear a face and why iPLEDGE sits before any hatch. An angina miss in Sandwich explains why a 100 mg diamond still needs an empty plate and a nitrate hold. Each label on this desk points back to the house that shaped the molecule.