Comparison
Rx Prenatal Vitamin Tablet and PreferaOB
Rx Prenatal Vitamin Tablet (Centrix Pharmaceutical) lists 15 distinct ingredients and PreferaOB (Alaven Pharmaceutical) 15 (rows of one ingredient counted once); 15 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 1.00: the same ingredients, at the amounts in the table below.
| Ingredient | Rx Prenatal Vitamin Tablet | PreferaOB |
|---|---|---|
| Vitamin B6 | 50 mg (2941%) | 50 mg (2941%) |
| Vitamin D | 10 mcg (50%) | 10 mcg (50%) |
| Vitamin B12 | 12 mcg (500%) | 12 mcg (500%) |
| Zinc | 15 mg (136%) | 4.5 mg (41%) |
| Niacin | 17 mg (106%) | 17 mg (106%) |
| Vitamin E | 10 IU | 10 IU |
| Folate | 1,000 mcg | 1,000 mcg |
| Pantothenic Acid (Vitamin B5) | 10 mg (200%) | 10 mg (200%) |
| Riboflavin | 1.6 mg (123%) | 1.6 mg (123%) |
| Thiamin | 1.5 mg (125%) | 1.5 mg (125%) |
| Biotin | 30 mcg (100%) | 30 mcg (100%) |
| Iron | 28 mg (156%) | not disclosed |
| Selenium | 65 mcg (118%) | 65 mcg (118%) |
| Copper | 0.8 mg (89%) | 0.8 mg (89%) |
| Iodine | 175 mcg (117%) | 250 mcg (167%) |
Amounts are per serving as DSLD gives them: Rx Prenatal Vitamin Tablet, 1 tablet; PreferaOB, 1 tablet. Current labels entered February 2021 and March 2015. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Rx Prenatal Vitamin TabletCentrix Pharmaceutical: every row against all products listing it
- PreferaOBAlaven Pharmaceutical: every row against all products listing it