It depends on why your doctor prescribed gabapentin. Some say Valentin reduces appetite, although that wasn't so for me, as my hunger stayed the same. If I remember correctly it takes some time for this drug to build up in your system, so 7 days seems a very short time. I did not experience any adverse side effects, so in my opinion you would be fine to give it a try for a week. I would ask your doctor why you need to take it, and why only for 7 days. Topomax or even Buproprion were also supposed to reduce appetite according to my doctor, and although I took those for migraines, neither suppressed my appetite. Hope this helps.