According to the provided sources, famciclovir can be taken with or without food. The drug patent watch website states that famciclovir can be taken with or without food [1]. Similarly, the Mayo Clinic website also mentions that famciclovir can be taken with or without food [2]. Additionally, the WebMD website confirms that famciclovir can be taken with or without food [3]. Therefore, based on the information from these sources, it is safe to conclude that famciclovir can be taken with or without food.

Sources:
[1] Drug Patent Watch: Famciclovir. Available at: https://www.drugpatentwatch.com/p/tradename/FAMCICLOVIR
[2] Mayo Clinic: Famciclovir (Oral Route) - Side Effects. Available at: https://www.mayoclinic.org/drugs-supplements/famciclovir-oral-route/side-effects/drg-20063776?p=1
[3] WebMD: Famciclovir Oral: Uses, Side Effects, Interactions, Pictures, Warnings & Dosing. Available at: https://www.webmd.com/drugs/2/drug-6157/famciclovir-oral/details