Redoxon Double Action Orange Effervescent Tablet 45S (Vitamin C & Zinc) @ $15. Box contains 3 tubes of 15 tablets each. Expire is on 18 Nov 2018 (refer to 2nd pic). NTUC selling 2x45S at $38.90 (U.P. $52.80), promo till 30 Jun 2017, i.e. 45S at $19.45 (refer to 3rd pic). So at only $15, you save further a further 22.8%!