Valium Manufacturer is the term for which the crossword solution is Roche (5 letters). Roche is a Swiss multinational healthcare company that is one of the world's largest pharmaceutical companies. It is known for its innovative medicines, diagnostic tests, and treatments for diseases such as cancer, HIV/AIDS, and Parkinson's disease. Roche is also the manufacturer of Valium, a benzodiazepine used to treat anxiety, muscle spasms, and seizures.