Follow the age guidance on the packaging. Do not exceed the recommended dose. Very high doses of vitamin C may cause stomach upset. If pregnant, breastfeeding, taking other supplements or medicines, or managing a medical condition (such as kidney stones), consult your doctor before use. Effervescent tablets contain sodium. Not a substitute for a balanced diet. Store in a cool, dry place. This product information is for general guidance only and does not replace professional medical advice. Always consult a qualified healthcare provider before starting any new supplement. Keep out of reach of children.