restless legs syndrome
"This drug is a little strange, because the 600 mg of this is technically "more" than 600 mg of Neurontin (gabapentin) . Also, the medicine starts to be peaks much later than Neurontin (see horizant pharmacokinetics). So, it can be complicated to figure out when to take it.  When I take it closer to bed, it seems to work better. However, the instructions which say to take it 6 hours before bed. I noticed a slight improvement over gabapentin (less awakening), but it's not consistent. 

Also, this drug company is a MESS.  My doctor's office staff has been calling for the advertised co-pay discount card since Thanksgiving 2014.  It is now May 2015 and he FINALLY got them from the rep (you cannot print them out online)"