The most common side effects with LITAK (seen in more than 1 patient in 10) are infections, pancytopenia or myelosuppression (low blood cell counts), purpura (bruising), immunosuppression (a weakened immune system), decreased appetite, headache, dizziness, abnormal breath and chest sounds, cough, nausea (feeling sick), vomiting, constipation, diarrhoea, rash, diaphoresis (excessive sweating), injection site reactions (pain and inflammation at the site of injection), fever, fatigue (tiredness), chills and asthenia (weakness).