Phenolsulfonphthalein - ț̢
Red dye, pH indicator, and diagnostic aid for determination of renal function. It is used also for studies of the gastrointestinal and other systems.
Synonyms : Sulfonphthal, Sulphental, Sulphonthal
Phenoperidine - ț̢
A narcotic analgesic partly metabolized to meperidine in the liver. It is similar to morphine in action and used for neuroleptanalgesia, usually with droperidol.