A relative of mine has a problem with alcohol and wants to stop. They have tried to 'white knuckle it' several times and relapsed. After doing some research we've discovered that there are multiple prescribed medications that could help and are worth a shot, but the GP isn't forthcoming to prescribe any of them:
Naltrexone
Acamprosate
Gabapentin
Baclofen
Antabuse etc.
When my relative has asked for medical support in the past they were given vitamins 
Is anybody able to shed some light on why this may be? Is it the cost of the medication? They are in receipt of benefits so exempt from paying for prescriptions but I would consider paying privately for them if a doctor would prescribe.