Lorazapam
medicine
It is strongly discouraged.
No, doctors cannot prescribe controlled substances to themselves or their families or their friends.
Drug addicts, drug sellers, and in some cases doctors and the people the prescribe drugs to.
yes
To officially issue a regulated drug to a patient
A doctor doesn't prescribe Methadone for Marijuana use. Normally if you are taking Methadone you will have some kind of drug support worker, and will be asked do a random drug test.
A non prescribed drug is a drug you buy at a street corner. It's also a drug that a doctor didn't prescribe to you.
There are test which will specify the type of drug one has taken. Some simply say the category of drug taken. If you are looking for a specific drug, a test can definitely be done
Didrex
No. Valium is an S4 drug and can only be prescribed by an MD.
Yes. Regular doctor can prescribe the above drug in most of the countries.