A neuromuscular aid for alleviation and prevention of conditions including muscle cramps and spasms. The neuromuscular aid may be in the form of a packet including a composition including 1 wt % to 15 wt % food grade acid. Instructions for use printed on an exterior of the packet include instructions to retain the composition in the oral cavity of a user for a length of time to alleviate or prevent muscle cramps. An oral treatment method includes administering a composition including 1 wt % to 15 wt % food grade acid to the oral cavity of a subject suffering from muscle cramps and retaining the composition in the oral cavity for a length of time. The composition may be in the form of a gas, a liquid, a solid, a gum, a powder, a thin film strip, a suspension, a colloid, or a gel.