Comparison

Allergy-Rx and Vitamin C-500 mg Plus Echinacea

Allergy-Rx (Hi-Tech Pharmaceuticals) lists 3 distinct ingredients and Vitamin C-500 mg Plus Echinacea (Nature's Bounty) 2 (rows of one ingredient counted once); 2 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 0.58.

Amount per serving (and % of the Daily Value)
IngredientAllergy-RxVitamin C-500 mg Plus Echinacea
Vitamin Cnot disclosed500 mg (556%)
Echinaceanot disclosed100 mg
Bitter orangenot disclosed

Amounts are per serving as DSLD gives them: Allergy-Rx, 1 tablet; Vitamin C-500 mg Plus Echinacea, 1 caplet. Current labels entered June 2012 and January 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own