A low softening point glass composition, which is substantially free from lead, bismuth and antimony and comprises oxides of vanadium, phosphorous, tellurium and iron, a softening point of the composition being 380\xb0 C. 010-3wherein nA is the refractive index at 25 C. The pin is biased toward the first longitudinal member by a biasing member. One or more previously unassigned ones of the electrodes neighboring the reference electrode are assigned respectively to one or more of the electrode grid positions immediately surrounding the electrode grid position to which the reference electrode is assigned. For example, methods of treating gastrointestinal spasms are provided, such methods not requiring the use of systemic drugs that have shown to provide slow relief, cause adverse side effects, limit activities, worsen existing gastrointestinal conditions, be unrecommended in several gastrointestinal conditions that include gastrointestinal spasms, or be unrecommended in the absence of diarrhea.