Kwells 300 microgram tablets are used for the fast and effective prevention and control of travel sickness. Travel sickness happens when the brain receives mixed messages. Visual messages from the eyes inform the brain that the immediate surroundings are stationary, but a delicate balancing organ in the ear tells the brain that you are moving. This conflicting information triggers the nausea we associate with travel sickness. Kwells tablets are available in a pack of 12.