I've recently started taking two 25 microgram tablets to equal 50 mcg. I did this because the doctor didn't increase the dose. 25 did not do anything. However, after taking the 50 mcg I notice that I get slightly drowsy and relaxed, like i'm on a low dose of the opiate hydrocodone. I feel no difference in mental clarity, or any of my other symptoms. Mainly just feel calmer. Is this a good sign? I've only been on 50 mcgs for about 5 days.