Drug & supplement interaction

Superoxide Dismutase (sod) + Cefdinir

Cefdinir brand name: Omnicef.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Superoxide Dismutase (sod) and Cefdinir in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Superoxide Dismutase (sod) and Cefdinir

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Cefdinir and Superoxide Dismutase (sod) in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for Superoxide Dismutase (sod) at all — not against Cefdinir, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Superoxide Dismutase (sod) safety at a glance

Superoxide Dismuta... overall Use caution Generally considered low-risk in short-term use, but long-term safety and effectiveness of supplements are not well established.
Pregnancy Avoid There is not enough reliable safety information, so it is best to avoid during pregnancy.
Breastfeeding Avoid Safety while breastfeeding is unknown, so avoiding it is the safer choice.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Cefdinir and Superoxide Dismutase (sod)? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Superoxide Dismutase (sod) and Cefdinir May Share a Side Effect

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do. One of them is worth acting on rather than waiting out — marked below.

  • A severe allergic reaction Worth acting on Additional detail

    Superoxide Dismutase (sod)

    “Orally and parenterally, superoxide dismutase seems to be well tolerated.

    Most Common Adverse Effects:

    Parenterally: Pain and injection site reactions.

    Serious Adverse Effects (Rare):

    Parenterally: Anaphylaxis, possibly related to impurities in parenteral formulations.”

    Superoxide Dismutase (sod) · Natural Medicines adverse-effect record, reported in pain.

    Cefdinir

    Listed in the ADVERSE REACTIONS section of the FDA label for Cefdinir. Read the label on DailyMed ›

Effects for Cefdinir come from the ADVERSE REACTIONS section of its FDA label; effects for Superoxide Dismutase (sod) come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 7,629 voluntary FDA FAERS reports for Cefdinir that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Overlapping uses

What Cefdinir Is Prescribed For, and What Superoxide Dismutase (sod) Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Cefdinir is a prescription medicine with approved uses on its FDA label. Superoxide Dismutase (sod) is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Cefdinir is prescribed for: Cefdinir treats mild to moderate bacterial infections in adults, adolescents, and children caused by susceptible bacteria. It is used for community-acquired pneumonia, acute exacerbations of chronic bronchitis, acute maxillary sinusitis (sinus infection), pharyngitis/tonsillitis (strep throat), and uncomplicated skin and skin structure infections. In pediatric patients (ages 6 months through 12 years), cefdinir is also used to treat acute bacterial otitis media (middle ear infection). It should only be used for infections that are proven or strongly suspected to be caused by bacteria — not for viral illnesses like the common cold.

Superoxide Dismutase (sod) has been studied for:

  • Pneumonia studied, not established Superoxide Dismutase (sod) has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Superoxide Dismutase (sod) for pneumonia

    It is unclear if intravenous superoxide dismutase is beneficial in patients with pneumonia.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Cefdinir on your own; if you are taking Superoxide Dismutase (sod) for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Superoxide Dismutase (sod) or Cefdinir

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Superoxide Dismutase (sod) or Cefdinir, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Cefdinir

This page covers Superoxide Dismutase (sod) only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Cefdinir page lists 60 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Asarabacca (major), Siberian Cocklebur (major), African Wild Potato (moderate) and Aristolochia (moderate).

By severity: 3 major · 46 moderate · 11 minor.

From our pharmacist’s overview on the Cefdinir page

“Cefdinir (Omnicef) is a short-course antibiotic for ear, sinus, throat, and skin infections, and three of its 60 supplement interactions on file are rated major and deserve genuine care. Two herbs, Siberian cocklebur and asarabacca, can damage the kidneys, an added strain nobody needs while fighting an infection.”

Reviewed by 2 · Jul 18, 2026

Open the Cefdinir interaction page

How much people look this up

Where Superoxide Dismutase (sod) and Cefdinir Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Superoxide Dismutase (sod)
Steady interest

#1,424 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Cefdinir
Steady interest

#2,025 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Superoxide Dismutase (sod) reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Superoxide Dismutase (sod) and Cefdinir records this page draws on were last updated July 10, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Superoxide Dismutase (sod)

What is Superoxide Dismutase (sod)?

  • Antioxidant support
  • Anti-aging and skin health
  • Joint pain and arthritis
  • Exercise recovery and oxidative stress
  • General inflammation

Superoxide dismutase (SOD) is a natural antioxidant enzyme your body makes to help neutralize harmful free radicals. While it has clear biological importance, oral supplements may be broken down during digestion, and strong human evidence that taking SOD supplements improves health is limited. Talk to your pharmacist or doctor before using it, especially if you are pregnant or have a health condition.

Enzyme sourced from plants (such as cantaloupe melon), bovine liver, or made by microbes; also produced naturally in the body · Capsules, tablets, topical creams, injectable forms (used in some research settings)

An interaction check asks whether these two react with each other — it does not ask whether Superoxide Dismutase (sod) is a good idea for someone in your situation. Here is what our Superoxide Dismutase (sod) record says about it on its own.

Superoxide Dismutase (sod): dosing

There is no well-established standard dose for superoxide dismutase supplements. Doses vary widely between products and forms.The best advice is to follow the directions on the product label and not exceed the recommended amount.

From our Superoxide Dismutase (sod) monograph — the full record covers uses, side effects and every documented interaction.

Read the full Superoxide Dismutase (sod) monograph & all interactions
Medication

About Cefdinir

What Is Cefdinir Used For?

Brand name: Omnicef

Cefdinir treats mild to moderate bacterial infections in adults, adolescents, and children caused by susceptible bacteria. It is used for community-acquired pneumonia, acute exacerbations of chronic bronchitis, acute maxillary sinusitis (sinus infection), pharyngitis/tonsillitis (strep throat), and uncomplicated skin and skin structure infections.

In pediatric patients (ages 6 months through 12 years), cefdinir is also used to treat acute bacterial otitis media (middle ear infection). It should only be used for infections that are proven or strongly suspected to be caused by bacteria — not for viral illnesses like the common cold.

Most-Reported Side Effects for Cefdinir

From FAERS, the FDA’s public side-effect reporting system (7,629 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Diarrhea 530 reports
Chronic kidney disease 485 reports
Pneumonia 482 reports
Fatigue 462 reports
Nausea 400 reports
See full Cefdinir drug information
Keep checking

Other Drugs & Superoxide Dismutase (sod)

Browse every other medication we’ve checked against Superoxide Dismutase (sod) — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Superoxide Dismutase (sod) against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Superoxide Dismutase (sod) list.

See the full Superoxide Dismutase (sod) interactions page
See every supplement checked against Cefdinir, ranked by severity
Evidence & sources

Superoxide Dismutase (sod) References

The 2 references that drive our Superoxide Dismutase (sod) monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Lewis CJ. Letter to reiterate certain public health and safety concerns to firms manufacturing or importing dietary supplements that contain specific bovine tissues. FDA. Available at: www.cfsan.fda.gov/~dms/dspltr05.html.
  2. Nielsen OS, Overgaard J, Overgaard M, et al. Orgotein in radiation treatment of bladder cancer. A report on allergic reactions and lack of radioprotective effect. Acta Oncol 1987;26:101-4. PubMed

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Superoxide Dismutase (sod) and Cefdinir Together: Common Questions

Is it safe to take Superoxide Dismutase (sod) with Cefdinir?
We do not list a known interaction between Superoxide Dismutase (sod) and Cefdinir. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Do Superoxide Dismutase (sod) and Cefdinir have any of the same side effects?
Yes — our sources link each of them separately to one of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Are Superoxide Dismutase (sod) and Cefdinir used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Superoxide Dismutase (sod) in each. That is a conversation for your prescriber, especially if Cefdinir is being adjusted to a target.
Does Cefdinir interact with any supplements?
Yes. Cefdinir has documented interactions with 60 supplements in our database — Superoxide Dismutase (sod) is not one of them. The Cefdinir interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Superoxide Dismutase (sod) monograph Uses, safety profile, and every drug interaction in one place Cefdinir drug information The full plain-English guide to this medication Cefdinir supplement interactions Every supplement checked against Cefdinir, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Cefdinir and Superoxide Dismutase (sod)?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.