Treatment of common and plantar viral warts with human lymphoblastoid interferon-alpha--pilot studies with intralesional, intramuscular and dermojet injections.

Pilot studies with human lymphoblastoid interferon-alpha(Wellferon), utilizing the intralesional, intramuscular and dermojet routes, have been performed in 39 patients with common and plantar viral warts resistant to conventional therapy. Clinical efficacy, local and systemic toxicity, and effects on haematological and clinical chemistry parameters has been measured. Our results indicate that the intralesional route is the most favourable as it combines an acceptable therapeutic ratio with a procedure that may be performed quickly and with no prior preparation of the lesion.