Slow Release Iron 45 mg Ingredients & Drug Interactions
by up&up
What is this page for?
First and foremost: checking Slow Release Iron 45 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Slow Release Iron 45 mg is a dietary supplement by up&up with 1 active ingredient. Its ingredients are commonly taken for iron-deficiency anemia, low iron stores during pregnancy, fatigue from iron deficiency.Based on those ingredients, 80 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Iron. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Slow Release Iron 45 mg by up&up
Ask about any prescription or over-the-counter medication and we check it for interactions with Slow Release Iron 45 mg by up&up — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Slow Release Iron 45 mg by up&up
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product has one active ingredient: iron, a mineral your body uses to make red blood cells and carry oxygen. The slow-release form means it dissolves gradually as it moves through your digestive system, which can help reduce stomach upset compared to standard iron supplements.
The tablet also contains several inactive ingredients — binders, colorants, and coating agents that hold it together and make it easier to swallow. None of these play a role in the supplement's effects.
Does it work?
Strong evidence
Iron is effective for treating iron deficiency anemia and anemia of chronic disease, both supported by solid evidence. It's also effective for pregnancy-related iron deficiency when prenatal care providers recommend it.
Heart failure shows possibly effective evidence, meaning the data suggests a potential benefit but isn't definitive yet.
How safe is it?
Well-documented data
Iron is generally well tolerated at the recommended dose, though excess iron can be toxic — only take a supplement if there's a real need. The most common side effects from oral iron are stomach upset: abdominal pain, constipation or diarrhea, nausea, and vomiting.
Rare serious effects include stomach or gut ulcers. Long-term use without medical supervision and follow-up has been linked to acquired iron overload (hemochromatosis) in case reports.
Iron is often recommended in pregnancy to prevent and treat iron deficiency, but your prenatal provider should guide the dose. It's considered generally acceptable while breastfeeding at appropriate doses, though you should confirm this with your doctor or pharmacist.
Meds to double-check
Moderate interaction found
Before taking this product, double-check your medications against levodopa, quinolone and tetracycline antibiotics, levothyroxine (thyroid hormone), bisphosphonates, methyldopa, mycophenolate mofetil, and penicillamine. All are affected by iron's interference with absorption.
Your pharmacist can help you space doses properly.
The bottom line
Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Iron supplements work well for iron deficiency and related anemias, but they interact with a wide range of medications by blocking their absorption. If you take levodopa, antibiotics, thyroid medication, bisphosphonates, blood pressure drugs, or immunosuppressants, check your exact medications with the tool on this page before starting.
Talk to your pharmacist about timing and whether you truly need supplementation.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2024.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Slow Release Iron 45 mg, straight from the product label.
| Brand | up&up |
|---|---|
| Barcode (UPC) | 079524865013 |
| Net contents | 30 Tablet(s) |
| Market status | On market |
| Date entered into DSLD | Sep 25, 2024 |
| DSLD ID | 317824 |
| Product type | Mineral |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Sugar Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Slow Release Iron 45 mg by up&up, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Iron | 45 mg | 250% |
Other ingredients: Ferrous Sulfate, Dicalcium Phosphate, Hydroxypropyl Methylcellulose, Cellulose, Powder, Carnauba Wax, FD&C Blue No. 1 lake, FD&C Red No. 40 lake, FD&C Yellow No. 6 Lake, Magnesium Stearate, Polyethylene Glycol, Titanium Dioxide
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Brand IP Statement(s)
This product is not manufactured or distributed by Novartis AG, owner of the registered trademark Slow Fe.
Trademark & Copyright 2021 Target Brands, Inc.
Precautions
Caution: Pregnant or nursing women, individuals taking medication(s) or persons who have a health condition should consult their physician before using this product.
Discontinue use and consult your doctor if any adverse reactions occur, including constipation. This product is not recommended for long term use. Safety-sealed. Do not use if printed seal under cap is cut, torn, or missing.
Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a doctor or poison control center immediately.
Keep out of the reach of children.
Not intended for use by persons under the age of 12.
Formula
Slow-release iron tablets are specially formulated to deliver high potency iron in a sustained, timed release format. Made with 144 mg of dried ferrous sulfate, equivalent to 45 mg elemental iron.
Formulation
No artificial flavors No sugar No gluten No lactose
Slow-release May help to improve energy and strength Gentle to your system May reduce the side effects associated with immediate-release iron Energy metabolism
Made in China. Packaged and quality assured in the USA. This product was formulated to provide gradual release of active material for absorption over an extended period of time. Tablet color may vary.
FDA Statement of Identity
Dietary Supplement
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
General Statements
Questions? Call 1-800-910-6874
Compare to Slow Fe
Suggested/Recommended/Usage/Directions
Suggested Use: Adults, take one (1) tablet daily with food as a dietary supplement or as directed by a physician.
Storage
Store at 15 degrees-30 degrees C (59 degrees-86 degrees F).
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Slow Release Iron 45 mg by up&up label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in Slow Release Iron 45 mg by up&up
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container30 Amounts shown are per serving.
Iron
Interacts with80 drugs
Iron is an essential mineral your body needs to make hemoglobin and carry oxygen in the blood. Supplements are mainly useful for treating or preventin...
Iron monograph & interactionsOther (inactive) ingredients: Ferrous Sulfate, Dicalcium Phosphate, Hydroxypropyl Methylcellulose, Cellulose, Powder, Carnauba Wax, FD&C Blue No. 1 lake, FD&C Red No. 40 lake, FD&C Yellow No. 6 Lake, Magnesium Stearate, Polyethylene Glycol, Titanium Dioxide. These complete the product’s ingredient list but are not active constituents.
Slow Release Iron 45 mg by up&up Drug Interactions
HelloPharmacist Interaction Report
Slow Release Iron 45 mg by up&up contains iron, which interacts with a number of medications by reducing how much of those drugs your body absorbs.
The most serious concern involves levodopa (used for Parkinson's disease) — iron can cut levodopa levels by around half, though we don't yet know how much that matters clinically. Separate doses by as much as you can.
Read the full breakdown — every affected drug type, severity by severity
Iron also reduces absorption of several antibiotic types. Quinolone antibiotics (like ciprofloxacin) and tetracycline antibiotics (like doxycycline) are both affected; with tetracyclines, the drop can be 50% to 90%.
Take iron at least 2 hours before or after quinolones, and at least 2 hours before or 4 hours after tetracyclines. The same timing applies to levothyroxine (thyroid hormone), which iron can also weaken by forming complexes in your gut.
Iron also interacts with bisphosphonates (bone medications), methyldopa (blood pressure medication), mycophenolate mofetil (an immunosuppressant), and penicillamine (for Wilson's disease). All require spacing of at least 2 hours, though mycophenolate mofetil needs 4–6 hours before or 2 hours after.
Altogether, these interactions span 79 individual medications.
Use the medication checker on this page to search your exact prescriptions before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Slow Release Iron 45 mg?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Slow Release Iron 45 mg interact with 80 drugs. Click any drug to see the details.
1 of the 1 ingredient in Slow Release Iron 45 mg interact with drugs. Each result below shows which ingredient is responsible. Iron
Emtricitabine, Tenofovir Alafenamide FumarateDescovy
How Emtricitabine, Tenofovir Alafenamide Fumarate interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Iron might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption when taken in a fasting state.
Read the full Iron + Emtricitabine, Tenofovir Alafenamide Fumarate interactionEnoxacinPenetrex
How Enoxacin interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Enoxacin interactionEravacyclineXerava
How Eravacycline interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronTetracycline Antibiotics Moderate
Interaction Summary
Iron might decrease levels of tetracycline antibiotics by reducing their absorption.
Read the full Iron + Eravacycline interactionEtidronate DisodiumDidrocal, Didronel
How Etidronate Disodium interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronBisphosphonates Moderate
Interaction Summary
Iron reduces the absorption of bisphosphonates.
Read the full Iron + Etidronate Disodium interactionFinafloxacinXtoro
How Finafloxacin interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Finafloxacin interactionGatifloxacinTequin, Tequin Injection
How Gatifloxacin interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Gatifloxacin interactionGemifloxacinFactive
How Gemifloxacin interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Gemifloxacin interactionGrepafloxacinRaxar
How Grepafloxacin interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Grepafloxacin interactionHydrochlorothiazide, MethyldopaAldoril 15, Aldoril 25, Aldoril D30, Methazide
How Hydrochlorothiazide, Methyldopa interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronMethyldopa (aldomet) Moderate
Interaction Summary
Iron might decrease methyldopa levels by reducing its absorption.
Read the full Iron + Hydrochlorothiazide, Methyldopa interactionIbandronateBoniva, Boniva IV
How Ibandronate interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronBisphosphonates Moderate
Interaction Summary
Iron reduces the absorption of bisphosphonates.
Read the full Iron + Ibandronate interactionLamivudine, RaltegravirDutrebis
How Lamivudine, Raltegravir interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronIntegrase Inhibitors Moderate
Interaction Summary
Theoretically, taking iron along with integrase inhibitors might decrease the levels and clinical effects of these drugs.
Read the full Iron + Lamivudine, Raltegravir interactionLamivudine, Tenofovir Disoproxil FumarateTemixys
How Lamivudine, Tenofovir Disoproxil Fumarate interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Iron might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption when taken in a fasting state.
Read the full Iron + Lamivudine, Tenofovir Disoproxil Fumarate interactionLevodopaInbrija, Larodopa
How Levodopa interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronLevodopa Moderate
Interaction Summary
Iron might decrease levodopa levels by reducing its absorption.
Read the full Iron + Levodopa interactionLevodopa, CarbidopaDuodopa
How Levodopa, Carbidopa interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronLevodopa Moderate
Interaction Summary
Iron might decrease levodopa levels by reducing its absorption.
Read the full Iron + Levodopa, Carbidopa interactionLevofloxacinLeva-pak, Levaquin, Levaquin Injection
How Levofloxacin interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Levofloxacin interactionLevofloxacin (ophthalmic)Levofloxacin
How Levofloxacin (ophthalmic) interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Levofloxacin (ophthalmic) interactionLevothyroxineEltroxin, Estre, Euthyrox, Levo-T, Levolet, Levothroid +5 more
How Levothyroxine interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronLevothyroxine (synthroid, Others) Moderate
Interaction Summary
Iron might decrease levothyroxine levels by reducing its absorption.
Read the full Iron + Levothyroxine interactionLevothyroxine SodiumErmez, Thyquidity, Tirosint-Sol
How Levothyroxine Sodium interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronLevothyroxine (synthroid, Others) Moderate
Interaction Summary
Iron might decrease levothyroxine levels by reducing its absorption.
Read the full Iron + Levothyroxine Sodium interactionLevothyroxine, LiothyronineArmour Thyroid
How Levothyroxine, Liothyronine interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronLevothyroxine (synthroid, Others) Moderate
Interaction Summary
Iron might decrease levothyroxine levels by reducing its absorption.
Read the full Iron + Levothyroxine, Liothyronine interactionLomefloxacinMaxaquin
How Lomefloxacin interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Lomefloxacin interactionMethyldopaAldomet, Methyldopa
How Methyldopa interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronMethyldopa (aldomet) Moderate
Interaction Summary
Iron might decrease methyldopa levels by reducing its absorption.
Read the full Iron + Methyldopa interactionMetronidazole, Tetracyline, Bismuth Subcitrate PotassiumPylera
How Metronidazole, Tetracyline, Bismuth Subcitrate Potassium interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronTetracycline Antibiotics Moderate
Interaction Summary
Iron might decrease levels of tetracycline antibiotics by reducing their absorption.
Read the full Iron + Metronidazole, Tetracyline, Bismuth Subcitrate Potassium interactionMinocyclineAcnamino MR, Aknemin, Amzeeq, Arestin Miscrosperes, Dynacin, Minocin +6 more
How Minocycline interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronTetracycline Antibiotics Moderate
Interaction Summary
Iron might decrease levels of tetracycline antibiotics by reducing their absorption.
Read the full Iron + Minocycline interactionMinocycline HydrochlorideMinolira, Ximino
How Minocycline Hydrochloride interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronTetracycline Antibiotics Moderate
Interaction Summary
Iron might decrease levels of tetracycline antibiotics by reducing their absorption.
Read the full Iron + Minocycline Hydrochloride interactionMoxifloxacinAvelox
How Moxifloxacin interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Moxifloxacin interactionMycophenolate MofetilCellCept
How Mycophenolate Mofetil interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronMycophenolate Mofetil (cellcept) Moderate
Interaction Summary
Theoretically, iron might decrease mycophenolate mofetil levels by reducing its absorption.
Read the full Iron + Mycophenolate Mofetil interactionNalidixic AcidNegGram
How Nalidixic Acid interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Nalidixic Acid interactionNorfloxacinNorflox, Noroxin
How Norfloxacin interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Norfloxacin interactionOfloxacinFloxin, Floxin Injection, Floxin Otic, Oflox
How Ofloxacin interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronQuinolone Antibiotics Moderate
Interaction Summary
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Read the full Iron + Ofloxacin interactionOmadacycline (iv)Nuzyra
How Omadacycline (iv) interacts with Slow Release Iron 45 mg — through 1 ingredient. Tap an ingredient for the detail:
IronTetracycline Antibiotics Moderate
Interaction Summary
Iron might decrease levels of tetracycline antibiotics by reducing their absorption.
Read the full Iron + Omadacycline (iv) interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Slow Release Iron 45 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.
Iron
Bictegravir/Emtricitabine/Tenofovir Alafenamide (Biktarvy)
Iron might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption when taken in a fasting state.
Advise patients that bictegravir/emtricitabine/tenofovir alafenamide and iron can be taken together if taken with food. However, if taken on an empty stomach, bictegravir/emtricitabine/tenofovir alafenamide should not be taken with, or 2 hours after, iron containing products.
Bisphosphonates
Iron reduces the absorption of bisphosphonates.
Advise patients that doses of bisphosphonates should be separated by at least two hours from doses of all other medications, including supplements such as iron. Divalent cations, including iron, can decrease absorption of bisphosphonates by forming insoluble complexes in the gastrointestinal tract.
Denosumab (Prolia, Others)
Administration of intravenous iron within one month of denosumab administration might increase the risk of severe hypophosphatemia and hypocalcemia.
A case of severe hypocalcemia (albumin corrected calcium 6.88 mg/dL, ionized calcium 3.68 mg/dL) and hypophosphatemia (<0.5 mg/dL) with respiratory acidosis, QT interval prolongation, and nonsustained ventricular tachycardia was reported in a 76-year-old male who had received an iron polymaltose infusion within 2 weeks of a subcutaneous injection of denosumab. Serum parathyroid hormone was also elevated (348 pg/mL). Subsequent iron infusions with iron polymaltose and ferric carboxymaltose were followed by transient hypophosphatemia, but without hypocalcemia. Additionally, a literature review describes 6 additional cases of hypophosphatemia and hypocalcemia in patients 52-92 years of age who had been administered intravenous iron as either ferric carboxymaltose or iron polymaltose and subcutaneous denosumab within 1-4 weeks of each other.
Dolutegravir (Tivicay)
Iron might decrease dolutegravir levels by reducing its absorption.
Advise patients to take dolutegravir at least 2 hours before or 6 hours after taking iron. Pharmacokinetic research shows that iron can decrease the absorption of dolutegravir from the gastrointestinal tract through chelation. When taken under fasting conditions, a single dose of ferrous fumarate 324 mg orally along with dolutegravir 50 mg reduces overall exposure to dolutegravir by 54%.
Integrase Inhibitors
Theoretically, taking iron along with integrase inhibitors might decrease the levels and clinical effects of these drugs.
Iron is a divalent cation. There is concern that iron may decrease the absorption of integrase inhibitors from the gastrointestinal tract through chelation. One pharmacokinetic study shows that iron can decrease blood levels of the specific integrase inhibitor dolutegravir through chelation. Also, other pharmacokinetic research shows that other divalent cations such as calcium can decrease the absorption and levels of some integrase inhibitors through chelation.
Levodopa
Iron might decrease levodopa levels by reducing its absorption.
Advise patients to separate doses of levodopa and iron as much as possible. There is some evidence in healthy people that iron forms chelates with levodopa, reducing the amount of levodopa absorbed by around 50%. The clinical significance of this hasn't been determined.
Levothyroxine (Synthroid, Others)
Iron might decrease levothyroxine levels by reducing its absorption.
Advise patients to separate levothyroxine and iron doses by at least 2 hours. Iron can decrease the absorption and efficacy of levothyroxine by forming insoluble complexes in the gastrointestinal tract.
Methyldopa (Aldomet)
Iron might decrease methyldopa levels by reducing its absorption.
Advise patients to separate methyldopa and iron doses by at least 2 hours. Iron can decrease the absorption of methyldopa from the gastrointestinal tract through chelation, resulting in increases in blood pressure.
Mycophenolate Mofetil (Cellcept)
Theoretically, iron might decrease mycophenolate mofetil levels by reducing its absorption.
Advise patients to take iron 4-6 hours before, or 2 hours after, mycophenolate mofetil. It has been suggested that a decrease of absorption is possible, probably by forming nonabsorbable chelates. However, mycophenolate pharmacokinetics are not affected by iron supplementation in available clinical research.
Penicillamine (Cuprimine, Depen)
Iron might decrease penicillamine levels by reducing its absorption.
Advise patients to separate penicillamine and iron doses by at least 2 hours. Oral iron supplements can reduce absorption of penicillamine by 30% to 70%, probably due to chelate formation. In people with Wilson's disease, this interaction has led to reduced efficacy of penicillamine.
Quinolone Antibiotics
Iron might decrease levels of quinolone antibiotics by reducing their absorption.
Advise patients to separate quinolone antibiotics and iron doses by at least 2 hours. Iron decreases the absorption of quinolones due to formation of insoluble complexes in the gastrointestinal tract.
Tetracycline Antibiotics
Iron might decrease levels of tetracycline antibiotics by reducing their absorption.
Advise patients to take iron at least 2 hours before or 4 hours after tetracycline antibiotics. Concomitant use can decrease absorption of tetracycline antibiotics from the gastrointestinal tract by 50% to 90%.
Chloramphenicol
Theoretically, taking chloramphenicol with iron might reduce the response to iron therapy in iron deficiency anemia.
Chloramphenicol interferes with erythrocyte maturation. However, since chloramphenicol isn't usually taken for prolonged periods, this isn't likely to be clinically significant.
Brand information
Manufacturer and brand details for Slow Release Iron 45 mg, from the product label.
up&up
See all up&up products- Name
- Target Corp.
- City
- Minneapolis
- State
- MN
- Phone Number
- 1-800-910-6874
Slow Release Iron 45 mg by up&up: Common Questions
Does Slow Release Iron 45 mg by up&up interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take this iron supplement if I'm pregnant?
Is it safe to take while breastfeeding?
What side effects should I expect?
How does this iron supplement work?
Is this product safe to take long-term?
Can I take this with food?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Slow Release Iron 45 mg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Slow Release Iron 45 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Slow Release Iron 45 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 72 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Iron 72 references
- McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
- Bruner AB, Joffe A, Duggan AK, et al. Randomized study of cognitive effects of iron supplementation in non- anaemic iron-deficient adolescent girls. Lancet 1996;348:992-6.
- Ullen H, Augustsson K, Gustavsson C, Steineck G. Supplementary iron intake and risk of cancer: reversed causality? Cancer Lett 1997;114:215-6.
- Reunanen A, Takkunen H, Knekt P, et al. Body iron stores, dietary iron intake and coronary heart disease mortality. J Intern Med 1995;238:223-30. PubMed
- Lund EK, Wharf SG, Fairweather-Tait SJ, Johnson IT. Oral ferrous sulfate supplements increase the free radical-generating capacity of feces from healthy volunteers. Am J Clin Nutr 1999;69:250-5.
- Rehman A, Collis CS, Yang M, et al. The effects of iron and vitamin C co-supplementation on oxidative damage to DNA in healthy volunteers. Biochem Biophys Res Comm 1998;246:293-8. PubMed
- Klipstein-Grobusch K, Grobbee DE, den Breeijen JH, et al. Dietary iron and risk of myocardial infarction in the Rotterdam Study. Am J Epidemiol 1999;149:421-8. PubMed
- Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
- Tatro DS, ed. Drug Interactions Facts. Facts and Comparisons Inc., St. Louis, MO. 1999.
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
- Campbell N, Paddock V, Sundaram R. Alteration of methyldopa absorption, metabolism, and blood pressure control by ferrous sulfate and ferrous gluconate. Clin Pharmacol Ther 1988;43:381-6..
- Schumann K, Borch-Iohnsen B, Hentze MW, Marx JJ. Tolerable upper intakes for dietary iron set by the US Food and Nutrition Board (commentary). Am J Clin Nutr 2002;76:499-500. PubMed
- Tuomainen TP, Punnonen K, Nyyssonen K, Salonen JT. Association between body iron stores and the risk of acute myocardial infarction in men. Circulation 1998;97:1461-6.. PubMed
- Salonen JT, Nyyssonen K, Korpela H, et al. High stored iron levels are associated with excess risk of myocardial infarction in Eastern Finnish men. Circulation 1992;86:803-11.. PubMed
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