Substitution treatment is a service where a person is given medication to help them taper off another drug or regain stability in their lives. 

The main substitution therapy option in New Zealand is for opioids. Opioid substitution treatment (OST) supports people who are addicted to opioids by providing them with a similar medicine (methadone or buprenorphine). 

In New Zealand, there are also substitution therapy options for benzodiazepines and nicotine. Substitution for nicotine is often called nicotine replacement therapy (NRT). Also, medication can sometimes be prescribed to help people manage unpleasant symptoms or health issues without being part of a substitution therapy programme. 

How could it be helpful?

The medicines used in opioid substitution treatment help reduce the withdrawal symptoms that people commonly experience after stopping. This means that people who are addicted to opioids can regain stability in their life and improve their health. You are supported by a group of health professionals, which can include key workers, pharmacists, and a clinical treatment team. 

Opioid substitution therapy is generally a long-term support option. The substitution therapy service can let you know how long it would take and may be able to recommend shorter options if needed. 

There are several helpful resources that can help you explore if this is a good option for you. These include: 

How to access?

To access opioid substitution treatment (OST), ask your doctor (GP) or local addiction service. You can also call the Alcohol Drug Helpline (0800 787 797) or visit Health Point to find out what is available in your area. 

This is a list of the specialist Opioid Substitution Treatment Services in New Zealand. You can speak to your doctor (GP), addiction service, or call them directly to ask about accessing the service: 

Opiate Substitution Treatment Service

Manaia House, 41 Rathbone St, Whangārei

09 430 4102 dial extension 3502 and ask for the OST duty clinician. 

Auckland Opioid Treatment Service

Pitman House, 50 Carrington Road, Point Chevalier, Auckland 

09 815 5841 and ask for OST Services

Mental Health and Addictions Service

Gate 10, 135C Silverdale Road, Hillcrest, Silverdale, Hamilton 

0800 022 436 or 07 834 6902 

Bay of Plenty Addiction Service

Kowhai House, Tauranga Hospital, Cameron Road, Tauranga 

0800 800 508 or 07 579 8329 

Lakes Opioid Treatment Service

1144 Pukaki Street, Level 2 Pukaki Centre, Rotorua

0800 839 702 or 07 343 5050 

Community Mental Health Addictions Service

79 Lowe Street, CBD, Gisborne 

0800 999 014 or 06 869 2097 

Addiction Services

Gate 9, Cashmore Building, McLeod Street, Hastings Hospital, Hastings 

06 878 8109 dial extension 5700 

Alcohol and Drug Service

27 David Street, Westown, New Plymouth 

0508 292 467 dial option 2 or 06 753 6139 dial option 6 

Community Mental Health and Alcohol and Other Drug Service

Whanganui Te Whatu Ora, 100 Heads Road, Gonville, Whanganui

06 348 1207

Mental Health and Addiction Services

Ruahine House, Gate 12/50 Ruahine Street, Palmerston North

Call Fran via 027 275 0840 or other OST staff on 0800 653 357 

Pathways (Wairarapa) OST Service

Level 1, Departmental Building, 35-37 Chapel Street, Masterton 

06 370 6100 (leave a voice message if no answer)

Addiction Services Wellington

Level 1, 113 Adelaide Road, Newtown, Wellington 

0800 300 183 or 04 494 9170

Ratonga Puwaia / Addiction Services

Braemar Campus, Upper Franklyn Street, Nelson 

Nelson call 03 546 1994 and Blenheim call  03 520 9908 

Rata Alcohol and other Drugs Service

71 Water Walk Road, Greymouth 

0800 006 225 or 03 769 7805

Christchurch Opioid Recovery Service

Hillmorton Hospital, Sylvan Street, Middleton

03 335 4350 

South Canterbury Opioid Recovery Service

Queen Street, Timaru 

022 000 7628 or Mel 03 687 2165, Tania 03 687 2125, Darrell 03 687 2182

Specialist Addiction Service Otago

Ground Floor, East Wing, Main Block, Wakari Hospital, 371 Taieri Road, Halfway Bush, Dunedin

0800 443 366 or 03 476 9760 

Specialist Addiction Service Southland

Community Mental Health and Addiction Services, Southland Hospital, Kew Road, Invercargill 

0800 443 366 or 03 214 5786 

Where

Professional setting

Time commitment

Full time

Accessing this treatment

Requires a process