I am a Female aged 46 and live in South Africa. On Warfarin for past two weeks. Also take Ecotrin on advice from Neurologist, and Epitec (Lamictin) for Epilepsy. Med history: Factor V deficiency. 1 x DVT and PE 26 years ago, 2 x CVA 2003/2004, recent TIA (3 weeks ago). Over past 3 days I have not been able to get rid of an unpleasant taste (metallic, sulphuric, bitter) in the roof of my mouth. What is the cause and is there anything I can do about it?