2. brief counselling - provided by your GP, or via the telephone (DirectLine)

These are known as 'brief interventions' and usually involve a number of steps:

providing feedback on the level of alcohol or drug use and the harms;
recommending a change in behaviour with clear and firm advice to cut down on use;
presenting options to facilitate the change;
checking and responding to the client's reaction; and
providing follow-up care.

So, in one session with your GP or counsellor you are provided with feedback and advice about changing your drug use. Perhaps surprisingly, these brief interventions can be very effective in encouraging people to change harmful drug use and do result in reduced harm.