What the FDA labels say about taking them together
Alpha-tocopherol, asorbic acid and 11 other ingredients and doxycycline
Alpha-tocopherol, asorbic acid and 11 other ingredients's FDA label of July 2, 2026 names doxycycline in its drug interactions section; the doxycycline labels PlainMeds reads (4) do not name alpha-tocopherol, asorbic acid and 11 other ingredients. The alpha-tocopherol, asorbic acid and 11 other ingredients label: “Effect of multiple vitamins injection (pediatric) on other drugs: Thiamine, riboflavin, pyridoxine, niacinamide, and ascorbic acid decrease activities of erythromycin, kanamycin, streptomycin, doxycycline, and lincomycin”
Check it at the source: the alpha-tocopherol, asorbic acid and 11 other ingredients FDA label on DailyMed (effective July 2, 2026); the doxycycline FDA label on DailyMed (effective July 25, 2025, Chartwell RX, LLC.).
What does the alpha-tocopherol, asorbic acid and 11 other ingredients label say about doxycycline?
Alpha-tocopherol, asorbic acid and 11 other ingredients label, drug interactionsEffect of multiple vitamins injection (pediatric) on other drugs: Thiamine, riboflavin, pyridoxine, niacinamide, and ascorbic acid decrease activities of erythromycin, kanamycin, streptomycin, doxycycline, and lincomycin
Source: FDA drug label (Multiple Vitamins (Pediatric) Pharmacy Bulk Package), Apotex Corp, effective July 2, 2026 (SPL set d9b6eb9a-4218-5c94-6e35-7cbbf0fba494), via openFDA; the full label on DailyMed
What does the doxycycline label say about alpha-tocopherol, asorbic acid and 11 other ingredients?
Doxycycline's label (effective July 25, 2025) and its 3 other brand-application labels do not name alpha-tocopherol, asorbic acid and 11 other ingredients in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Doxycycline Monohydrate), Chartwell RX, LLC., effective July 25, 2025 (SPL set 02aa8731-d40f-43d8-8b63-a79a0503f8db), via openFDA; the full label on DailyMed
These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.
Both medicines on the record
| Alpha-tocopherol, asorbic acid and 11 other ingredients | Doxycycline | |
|---|---|---|
| Labeled for | n/a | Urinary tract infections, Bacterial infections, Acne |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | n/a | $0.118 per tablet 100 mg tablet |
| Shortage now | No current entry | A presentation being discontinued |
Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)
What next?
- Check more medicines together
- up to five at once