Answer:
With a doctor's prescription Valium can be legally purchased from online pharmacies.
Ask your doctor to prescribe a generic medication instead of the name brand. Almost all of them are identical in their active ingredients and can really save money on a prescription.
Shop around at as many pharmacies as possible. Don't forget to include online pharmacies in your search, as they often have the best prices, and you can save a lot of money on a prescription.
If you necessary to familiarize with the prices of certain meds
Many online reliable pharmacies will be happy to provide the prescription to anyone who can answer a few simple questions.