I started taking Famvir approx halfway through March. I have 250mg 3x per day. I haven't noticed side effects aside from diarrhoea on first day (I do have some current GI issues though). I'm not really sure if I've noticed any benefit though. How long does it usually take to see an effect? It's just it's a very expensive drug to take for long. I'm currently getting 1 week's worth at a time, costing me $30 to $45 (AU) each time. Massive difference in prices, so I really need to narrow down which chemists to get it from. I haven't been too well so far this year and am getting a little down about not being able to contribute much to my household (don't work, my only contributions are cleaning here and there) and struggling to keep up with my part time study. I'm trying to get on disability to make things easier, but it's taking so long to convince the doctor to actually do anything about it. Just looking for any further insight about Famvir and what kinds of effects it should have and how long you have to be on it to see any effects.