The present invention relates to methods of treating fibromyalgia, by administering a therapeutically-effective combination of an antiviral component and a COX-2 inhibitor component. The invention is further related to pharmaceutical compositions comprising a combination of a therapeutically-effective amount of the antiviral compound famciclovir and a therapeutically-effective amount of the COX-2 inhibitor celecoxib. The invention is also related to methods of treating functional somatic syndromes by administering a therapeutically-effective combination of famciclovir and celecoxib.
