Ionic compounds. Ionic bonds form when a metal reacts with a non-metal. Metals form positive ions; non-metals form negative ions. Ionic bonds are the electrostatic [electrostatic: An electrostatic force is generated by differences in electric charge (ie positive and negative) between two particles.
Red raspberry leaf tea is also used for painful menstrual cramps, as well as heavy periods. The chemicals in the red raspberry leaf help relax blood vessels and cause muscles to relax or contract.
Yes peppermint tea is great for bloating, stomach cramps and flatulence. I also recommend ginger tea http://flatulencecures.com/ginger-tea-benefits-digestion and fennel tea which is perhaps even more effective http://flatulencecures.com/what-is-fennel-tea-good-for.