5 pharmaceutical preparations containing dimerized enzymes for animal and human use for the treatment of viral and bacterial infections, diseases associated with high TNF levels, cancer, HIV and AIDS related infections, leukemia, bodily conditions associated with impaired immunosystem and hair growth disorders; virosomes and pharmaceutical preparations carried by virosomes for animal and human use for the treatment of viral and bacterial infections, diseases associated with high TNF levels, cancer, HIV and AIDS related infections, leukemia, bodily conditions associated with impaired immunosystem, hair growth disorders and any disease treatable by topic or systemic administration of drugs including gene therapy, hormone therapy, cytokine therapy, chemotherapy, immunosystem stimulating therapy, vaccines for passive and active immunization, tissue regeneration, tissue protection or tissue destruction