Hydralyte Electrolyte Effervescent Summer Splash Multi Flavour 60 TabletsHydralyte Summer Splash Multi Flavour Effervescent Electrolyte relieves symptoms of dehydration and helps replace water and electrolytes lost due to vomiting, diarrhoea, heavy sweating, vigorous exercise and occasional hangovers. Dehydration due to: Vomiting & diarrhoea. Heat. Travel. Vigorous exercise. Heavy sweating. Occasional hangovers. Heat & excessive exercise at work. Signs of mild dehydration Sticky or dry mouth, increased thirst, lethargy,