Medication·Interactions·Reviewed June 9, 2026
Oseltamivir interactions.
Oseltamivir has 5 documented interactions in the NutriStack database. The full interaction list is below. None of this is a substitute for your prescriber's advice.
Oseltamivir at a glance.
A quick, data-grounded summary. The full tables are below.
Oseltamivir has 5 documented interactions in the NutriStack database. The full interaction list is below. None of this is a substitute for your prescriber's advice.
Substances that interact with oseltamivir.
Every supplement and medication in the NutriStack database with a documented interaction with this drug, highest-severity first. Open any pair for the mechanism and sources.
| Substance | Interaction | What happens |
|---|---|---|
| Echinacea | Synergy | Echinacea purpurea preparations have demonstrated in vitro activity against influenza viruses and a randomized comparative trial of Echinaforce hot... |
| Elderberry | Synergy | Elderberry (Sambucus nigra) flavonoids inhibit influenza H1N1 attachment in vitro and small randomized trials suggest modest reductions in influenza... |
| Elderberry Zinc Lozenges | Synergy | Elderberry blocks influenza H1N1 attachment in vitro and zinc lozenges (acetate or gluconate) reduce common cold duration in meta-analyses. Combined... |
| Vitamin D3 | Synergy | Vitamin D supplementation modestly reduces the risk of acute respiratory infections, particularly in deficient individuals, per a large individual... details → |
| Zinc | Synergy | Zinc supports antiviral immune function and meta-analyses show modest reductions in common cold duration with zinc lozenges. While direct trials of... |
The full oseltamivir profile.
Uses, typical dosing, side effects, and the cited evidence for this medication.
Common oseltamivir questions.
Quick answers drawn from the tables above.
What interacts with Oseltamivir?
In the NutriStack database, Oseltamivir has 5 documented interactions. The most notable include Echinacea, Elderberry, Elderberry Zinc Lozenges, Vitamin D3, and Zinc. Check any specific combination before taking it and confirm with your prescriber.
Is it safe to take Echinacea with Oseltamivir?
NutriStack classifies the Echinacea and Oseltamivir pairing as synergy: Echinacea purpurea preparations have demonstrated in vitro activity against influenza viruses and a randomized comparative trial of Echinaforce hot drink versus... Echinacea may be used as an optional adjunct to oseltamivir for influenza in healthy adults, started early in illness. Avoid Echinacea if you are on... Always confirm with your prescriber.
Check your whole stack
See how oseltamivir fits your supplements.
NutriStack screens your full routine for interactions and depletions, and updates the moment you change it.