Healthcare Professionals


Product name: Exorex Lotion 5% v/w Cutaneous Emulsion

Active Ingredients: Coal tar solution 5% v/w

Indications: Exorex is for the treatment of psoriasis of the skin and scalp.

Legal Category: GSL

Further information is available from: Actavis UK Ltd, Whiddon Valley, Barnstaple, Devon EX32 8NS. Information about this product, including adverse reactions, precautions, contra-indications, and method of use can be found at:

Adverse events should be reported. Reporting forms and information can be found at

Adverse events should also be reported to Actavis on 01271 385257.

Understanding Psoriasis

Psoriasis is a chronic, inflammatory skin disease caused by overactive cells in the immune system. It can have a major impact on quality of life.

Over 1 million people in the UK suffer from psoriasis, with both men and women equally at risk. The condition is not infectious, but an estimated 30% of sufferers have relatives who are also affected.


Patches of skin (plaques or lesions) appear red, flaky and crusty, and are covered with silvery scales. They can arise anywhere on the body, and have well-defined boundaries with the surrounding skin.

Psoriasis causes intense itching and the skin can split. Some sufferers develop stiff and painful joints.

Changes can appear in the nails, including indentations on the surface or discolouration under the nail.
The most common types of psoriasis are:

  • Plaque Psoriasis: red, flaky, crusty patches of skin covered with silvery scales
  • Scalp psoriasis: ranging from slight, fine scaling to crusted plaques covering the scalp
  • Guttate Psoriasis: a rash of small spots often seen in children


There is no cure, but there are effective treatments to manage the signs and symptoms. Most patients with mild-to-moderate psoriasis respond well to topical therapy alone. Agents include corticosteroids, vitamin D analogues, coal tar preparations, dithranol and retinoid creams.

Types of Psoriasis

Scalp Psoriasis

This is very common and ranges from slight, fine scaling
 to crusted plaques covering the whole scalp.


Guttate Psoriasis

Most often seen in children and sometimes

triggered by a streptococcal throat infection.


Flexural Psoriasis

Affecting body folds.


Pustular Psoriasis

Localised or generalised palmar plantar disease.

pustular psoriasis

Nail changes in Psoriasis

Changes in the nails can often be seen. The most striking are:

  • Irregular pitting (indentations) of the surface of the nail.
  • Circular areas of discolouration under the nail
  • Separation of the nail from the underlying nail bed
  • Thickening of the nails.