Fenethylline

Fenethylline is a codrug of amphetamine and theophylline which behaves as a prodrug to both of the aforementioned drugs. It is also spelled phenethylline and fenetylline (INN); other names for it are amphetamin​oethyl​theophylline and amfetyline. The drug was marketed for use as a psychostimulant under the brand names Captagon, Biocapton, and Fitton.


Fenethylline is a codrug of amphetamine and theophylline which behaves as a prodrug to both of the aforementioned drugs. It is also spelled phenethylline and fenetylline (INN); other names for it are amphetamin​oethyl​theophylline and amfetyline. The drug was marketed for use as a psychostimulant under the brand names Captagon, Biocapton, and Fitton.
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