Liver Extract + Ferrous Sulfate
Ferrous Sulfate brand name: Feosol.
Liver Extract has a minor interaction with Ferrous Sulfate. Liver extract can contain heme iron. Taking liver extract with iron-containing medications or supplements may increase total iron intake and could increase the risk of gastrointestinal adverse effects or excessive iron accumulation.
Read the full interaction reportLiver Extract and Ferrous Sulfate
Here is the interaction we found between these two, with the evidence behind it.
Iron
Why this applies to Ferrous Sulfate
Ferrous Sulfate falls under Iron — the group Liver Extract interacts with.
Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
Here's the simple version: liver extract naturally carries its own iron (the heme kind your body absorbs pretty easily). Your ferrous sulfate is already a concentrated iron pill, so taking both means you're stacking iron on top of iron. Nothing is blocking or speeding up how your body handles it, you're just getting more total iron.
For most people this is a minor concern, but the extra load can bump up the usual iron side effects: an upset stomach, nausea, constipation, and dark stools. The bigger worry is with high doses, long-term use, or if you have a condition like hemochromatosis where iron builds up too much. Before doubling up, check with your pharmacist or doctor, they can look at your total iron and, if needed, check your ferritin levels.
What These Ratings Mean
Every interaction above is graded three ways — here’s the key to each label.
Clinically significant. Avoid the combination, or use only under close professional supervision.
Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.
Generally not serious. Be aware of it and mention it to your pharmacist.
- LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
- ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
- PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
- UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
- AHigh-quality meta-analysis (quantitative systematic review).
- BCase-control study.
- CConsensus.
- DAnecdotal evidence.
These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.
Liver Extract Also Interacts With Other Medications
Liver Extract has 2 minor known drug interactions in our database — the Ferrous Sulfate one above is one of them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Liver Extract
We haven’t checked that one against Liver Extract yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Liver Extract. Pick one to open its full report.
Questions About Liver Extract or Ferrous Sulfate
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Liver Extract or Ferrous Sulfate, 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:
- Taking Doxycycline And Synthroid Together ›
- Can You Take A Stool Softener With Oral Iron To Help With Constipation? ›
- Can You Take Levothyroxine And Iron Supplements Together? ›
Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.
See Every Supplement That Interacts With Ferrous Sulfate
This page covers Liver Extract only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ferrous Sulfate page lists 2 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Arum (minor).
By severity: 2 minor.
From our pharmacist’s overview on the Ferrous Sulfate page
“Ferrous sulfate (Feosol) is a workhorse iron pill for low iron, and its supplement list is short and mild. Just two ingredients are on file, both rated minor, so serious trouble is unlikely for most people, though your prescriber should still know what you take.”
Reviewed by 2 · Jul 18, 2026
Taking Liver Extract as Part of a Dietary Supplement Product? Check It for Interactions
We hold 595 real supplement products containing Liver Extract, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Liver Extract. Your product may carry other ingredients that interact with Ferrous Sulfate too, on top of Liver Extract — and those would not show on this page. Find your product and we’ll check every ingredient on its label:
Where Liver Extract and Ferrous Sulfate 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.
#284 of 1,452 supplements looked up here in the last 7 days
#441 of 2,830 medications looked up here in the last 7 days
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.
About Liver Extract
What is Liver Extract?
- Anemia and low iron
- Vitamin B12 support
- General energy and fatigue
- Nutritional support for athletes
- Liver health support
Liver extract is a dried or concentrated form of animal liver that is naturally rich in iron, vitamin B12, vitamin A, and other nutrients. It was once used to treat certain anemias before purified vitamins became available, but today there is little modern evidence that it offers benefits beyond what a balanced diet or standard supplements provide. Talk with your pharmacist or doctor before using it, especially if you are pregnant, have liver disease, or have iron overload conditions.
About Iron Supplements
What Is Iron Supplements Used For?
Brand name: Feosol
-
Iron (ferrous fumarate, ferrous gluconate, ferrous sulfate) is used to treat or prevent anemia (a lower than normal number of red blood cells) when the amount of iron taken in from the diet is not enough. Iron is a mineral that is available as a dietary supplement. It works by helping the body to produce red blood cells.
Other Drugs & Liver Extract
Browse every other medication we’ve checked against Liver Extract — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
2 interactions
No interaction 2,827 drugs checked — show the list
We also checked Liver Extract against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Metoprolol ›
- Ivermectin ›
- Aspirin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Escitalopram ›
- Acetaminophen ›
- Tadalafil ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Valacyclovir ›
- Hydroxyurea ›
- Abemaciclib ›
- Ibuprofen ›
- Methamphetamine ›
- Semaglutide ›
- Sumatriptan ›
- Tirzepatide ›
- Prednisone ›
- Propranolol ›
- Bupropion ›
- Lisdexamfetamine ›
- Metformin ›
- Amoxicillin ›
- Acyclovir ›
- Lisinopril ›
- Bendamustine ›
- Amitriptyline ›
- Doxycycline ›
- Methotrexate ›
- Lamotrigine ›
- Fluoxetine ›
- Amphetamine ›
- Gabapentin ›
- Pregabalin ›
- Acetaminophen, Codeine ›
- Azithromycin ›
- Dextroamphetamine ›
- Isotretinoin ›
- Clonazepam ›
- Omeprazole ›
- Quetiapine ›
- Methylene Blue ›
- Amlodipine Besylate ›
- Duloxetine ›
- Letrozole ›
- Buspirone ›
- Citalopram ›
- Naproxen ›
- Ciprofloxacin ›
- Bisoprolol ›
- Levothyroxine, Liothyronine ›
Showing the 60 most looked-up of 2,827 medications checked with no known interaction — see the full Liver Extract list.
Sources & How We Checked
Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference for vitamins, herbs and supplements — the basis for our interaction data.
- MedlinePlus, U.S. National Library of Medicine — NIH consumer drug information, used for the medication overviews.
- NIH Dietary Supplement Label Database (DSLD) — Official supplement product labels.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC
Taking Liver Extract and Ferrous Sulfate Together: Common Questions
Can you take Liver Extract with Ferrous Sulfate?
How serious is the Liver Extract and Ferrous Sulfate interaction?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.