“…Considering only reports with a sample size of three or more subjects, we could identify 27 studies published so far examining the efficacy of calcium-channel blockers for mood disorders as summarized in Tables IIa and IIb [Caillard and Masse, 1982;Giannini et al, 1984Giannini et al, , 1985Giannini et al, , 1987Goldstein, 1984;Brotman et al, 1986;Dose et al, 1986;Dubovsky et al, 1986Dubovsky et al, , 2001Barton and Gitlin, 1987;Dinan et al, 1988;Kramer et al, 1988;Mathis et al, 1988;Hoschl and Kozeny, 1989;Brunet et al, 1990;De Beaurepaire, 1992;Garza-Trevino et al, 1992;Goodnick, 1993;Pazzaglia et al, 1993;Lenzi et al, 1995;Walden et al, 1995;Walton et al, 1996;Janicak et al, 1998;Pazzaglia et al, 1998;Silverstone and Birkett, 2000;Wisner et al, 2002;Taragano et al, 2005]. Of these, 14 were single or double-blind controlled studies (eight with a crossover design), 7 were open trials, and 6 were case series.…”