4 x 20 Vitamin C 1000mg. Effervescent soluble Tablets. Brand: Minavit. 4 Tubes of Vitamin C soluble tablets in orange flavour. See pack for other ingredients. Effervescent vitamin c 1000mg tablets are dissolvable refreshing, fruit flavoured tablets which make up into a drink containing a full gram of vitamin c in a readily absorbable form. this product provides an alternative way of taking supplements especially for those who have difficulty in swallowing tablets.