Does it take Valium two weeks to become effective?

Valium (diazepam) can start to take effect relatively quickly, often within 30 minutes to an hour for anxiety relief. However, the full therapeutic benefits may take a few days to become apparent, especially for conditions like anxiety or muscle spasms. Individual response can vary, so some people might feel its effects sooner or later than others. If there's concern about its effectiveness, it's best to consult a healthcare professional.