My latest liver function test results have just come back. My GGT is the lowest since the issue was first discovered. It was 217 (against a recommended 8-61) in April 2016; this was after a period of significant alcohol use. It dropped slowly under reduced consumption, held steady during a period of abstinence while taking amiodarone and has further reduced now I am medication-free and sticking to guidance levels of 14 units per week. At 71, it is only just outside guidance limits.