Gaviscon 500mg non drowsy natural ginger nausea. 500 mg per capsule of natural ginger root. Each capsule of gaviscon nausea relief contains 500 mg of natural ginger root powder per capsule. Not from extract. Traditionally used in herbal medicine to help relieve digestive upset including lack of appetite, nausea, digestive spasms, indigestion, dyspepsia and flatulent colic.medicinal ingredients: zingiber officinale ginger (zingiber officinale rhizome dried) 500 mg. Non-medicinal ingredients: gelatin, vegetable magnesium stearate, silica.warning: consult a doctor if symptoms persist or worsen. Keep out of reach of children. Tamper evident: do not use if outer carton is open or inner seal beneath the cap is missing or broken. Keep carton for future reference.