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.
One example of an herbal tea that people use for menstrual discomfort is cramp bark, according to the University of Maryland Medical Center. Boil 2 teaspoons of the bark in a cup of water, simmer for about 15 minutes, and drink it three times a day.