“…Overwhelming evidence indicates that some antiepileptic drugs, especially, gabapentin and tiagabine exert analgesic effects in both, preclinical studies on animals and clinical settings in humans. Quite recently, it has been reported that tiagabine is effective in patients with painful sensory neuropathy (Novak et al, 2001), painful tonic spasm (Solaro and Tanganelli, 2004), bruxism (Kast, 2005) and chronic pain (Todorov et al, 2005). Similarly, gabapentin is effective in suppressing and alleviating pain in postherpetic neuralgia (Garry et al, 2005; Rowbotham et al, 1998), painful diabetic neuropathy (Backonja et al, 1998), migraine (Di Trapani et al, 2000), reflex sympathetic dystrophy (Mellick and Mellick, 1997), trigeminal neuralgia (Sist et al, 1997) and neuropathic cancer pain (Caraceni et al, 2004).…”