Tar Preparations

Coal tar (a type of tar preparation) has been used for the treatment of psoriasis for over 100 years. There are several different tar preparations available to treat psoriasis including ointments, creams, pastes and bath oil.

How do they work?
Tar preparations reduce skin cell growth which leads to less skin inflammation and scaling.

When are they used?
Tar preparations may be used to treat plaque psoriasis. They can be used on large areas of the body and milder preparations can be used on the face and sensitive areas.

How are they administered?
Tar preparations are applied directly to the skin between one and three times a day. A member of your healthcare team will advise you how many times a day you should apply your tar preparation.

Advantages and disadvantages
There are many different types of tar preparations available so your healthcare team will be able to choose one that is appropriate for you to use. Some tar preparations are suitable for use on the scalp, face and sensitive areas.

Tar preparations can stain clothing, hair and fabric. They can also cause skin irritation and have a strong odour.

If you have any questions about tar preparations, you may want to discuss them with a member of your healthcare team.

 

Further reading

Menter A, Griffiths C. Current and future management of psoriasis. Lancet 2007;370:272–84

Menter A, Korman NJ, Elmets CA et al. Guidelines of care for the management of psoriasis and psoriatic arthritis. Section 3. Guidelines of care for the management and treatment of psoriasis with topical therapies. J Am Acad Dermatol 2009;60:643–59

British Medical Association. Royal Pharmaceutical Society of Great Britain. British National Formulary 57. 2009

Scheinfeld NS, Mikhail M. Treatment options for psoriasis part 1: topical treatments. Skin med 2004;3:225–7