neuralgia
"I was recently put on this medication - only 25 mg to start for the first week. Since about the third day of taking the low dose of this medication I suddenly began to be extremely tired. I was not feeling like myself at all. I had to leave work early one day and was off for the rest of the week. I also slept for about one whole day. My doctor is aware and wants me to stick with the low dose for now since I am still feeling pretty lethargic during the 3rd week. I hope that it will get better soon. "