Thanks. There isn’t any 50mg tablets and I assume it’s 50 microgram tablet. I under-active thyroid problem, the lipids will be abnormal anyway. Go and check the risks of developing coronary artery disease and stroke. If the risk is more than 10% over 10 years period, then take cholesterol lowering tablets. See a local cardiologist for risk assessment. Best wishes Dr R Muthusamy MRCP FRCP Cardiology