Perspectives of Clinical Pharmacist on Erlotinib-Related
Drug Interactions
                    Kamer TECEN*, Aygin BAYRAKTAR-EKİNCİOĞLU*°
                    * Hacettepe Üniversitesi Eczacılık Fakültesi Klinik Eczacılık Anabilim Dalı, Ankara-TÜRKİYE
                    °Corresponding Author:
                      Phone: 05323550746
                      E-mail: aygin@hacettepe.edu.tr
                     
                    Summary
                      
                      Erlotinib is a tyrosine kinase inhibitor which is one of the epidermal
                      growth factor receptor inhibitors and its use in cancer treatment
                      increases recently. Since the main metabolisation pathway of
                      erlotinib is via the Cytochrome P450 enzyme system in liver, it
                      becomes one of the important drug with a high potential for drug
                      interactions. The solubility of erlotinib is pH dependent, therefore
                      concurrent use of acid suppressing agents can alter the bioavailability
                      of erlotinib. Drug interactions observed with erlotinib treatment are
                      common in clinical practice and affects the treatment process. An
                      involvement of clinical pharmacist in the monitoring of treatment
                      will help to prevent those interactions. In this review, it is aimed to
                      give information about clinically important drug interactions and
                      management of these interactions in a view of current literature.
                    
                      Key Words :
                        Tyrosine kinase inhibitors, erlotinib, drug interactions, 
                        clinical pharmacist.