Drug & supplement interaction

Gelatin + Sucralfate

Sucralfate brand names: Carafate, Antepsin.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Gelatin and Sucralfate 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 label for Sucralfate states a food rule worth keeping to, and 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

Gelatin and Sucralfate

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 Sucralfate and Gelatin 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 Gelatin at all — not against Sucralfate, 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.

Gelatin safety at a glance

Gelatin overall Generally safe Gelatin is widely consumed as a food and is generally considered safe for most people.
Pregnancy Likely Safe When used orally in the amounts commonly found in foods. Read the full pregnancy detail
Breastfeeding Likely Safe When used orally in the amounts commonly found in foods. There is insufficient reliable information available about the safety of using larger amounts of gelati... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Sucralfate and Gelatin? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Gelatin and Sucralfate May Share Several of the Same Side Effects

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. 3 of them are worth acting on rather than waiting out — marked below.

  • Wheezing / Hives Worth acting on Additional detail

    Gelatin

    “Gelatin can cause allergic reactions. Gelatin in foods can cause initial sensitization. Gelatin-containing medicines including oral medications, suppositories, vaccines, and injectable products can cause IgE-mediated allergic reactions, including urticaria, angioedema, wheezing, hypotension, and anaphylaxis.”

    Gelatin · Natural Medicines adverse-effect record, reported in hypotension.

    6 sources cited
    1. 7703. Schwick HG, Heide K. Immunochemistry and immunology of collagen and gelatin. Bibl Haematol 1969;33:111-25. PubMed
    2. 7708. Kelso JM. The gelatin story. J Allergy Clin Immunol 1999;103:200-2.
    3. 7709. Nakayama T, Aizawa C, Kuno-Sakai H. A clinical analysis of gelatin allergy and determination of its causal relationship to the previous administration of gelatin-containing acellular pertussis vaccine combined with diphtheria and tetanus toxoids. J Allerg PubMed
    4. 7710. Sakaguchi M, Inouye S. Anaphylaxis to gelatin-containing rectal suppositories. J Allergy Clin Immunol 2001;108:1033-4. PubMed
    5. 97633. Ventura Spagnolo E, Calapai G, Minciullo PL, Mannucci C, Asmundo A, Gangemi S. Lethal anaphylactic reaction to intravenous gelatin in the course of surgery. Am J Ther. 2016;23(6):e1344-e1346. PubMed
    6. 111345. Coury JR, Skaggs KF, Marciano GF, et al. Intraoperative Anaphylaxis to the Bovine Flowable Gelatin Matrix: A Report of 2 Cases. JBJS Case Connect 2022;12(1). PubMed

    Sucralfate

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

  • An allergic reaction Worth acting on Additional detail

    Gelatin

    “Orally, gelatin seems to be well tolerated.

    Most Common Adverse Effects:

    Oral: Belching, bloating, and dyspepsia.

    Serious Adverse Effects (Rare):

    Injection: IgE-mediated allergic reactions, Kounis syndrome.”

    Gelatin · Natural Medicines adverse-effect record, reported in dyspepsia.

    Sucralfate

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

  • Bloating or gas / Stomach upset Additional detail

    Gelatin

    “Orally, gelatin can cause unpleasant taste, sensation of heaviness in the stomach, bloating, dyspepsia, and belching.”

    Gelatin · Natural Medicines adverse-effect record, reported in dyspepsia.

    1 source cited
    1. 7704. Moskowitz RW. Role of collagen hydrolysate in bone and joint disease.Semin Arthritis Rheum 2000;30:87-99. PubMed

    Sucralfate

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

Reported for Gelatin but not commonly for Sucralfate: kidney problems, a fast or pounding heartbeat, a slow heartbeat and low blood pressure.

Effects for Sucralfate come from the ADVERSE REACTIONS section of its FDA label; effects for Gelatin come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Gelatin in Pregnancy & Breastfeeding

Pregnancy Likely Safe

When used orally in the amounts commonly found in foods.

Pregnancy Possibly Safe

When a specific type of gelatin from donkey hide, called colla corii asini, is used orally in doses of 10 grams daily for 6 weeks. Higher doses of 15 grams daily have been associated with an increased risk of inflammatory adverse effects, including sore throat, swollen gums, local eczema, and ulcers in the oral cavity. There is insufficient reliable information available about the safety of other types of gelatin when used during pregnancy in medicinal amounts.

Lactation Likely Safe

When used orally in the amounts commonly found in foods. There is insufficient reliable information available about the safety of using larger amounts of gelatin during lactation; avoid using.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

How to take them

Some Sucralfate Products Have a Food Rule — Gelatin Should Not Break It

At least one FDA label for a product containing Sucralfate says to take it on an empty stomach. Most supplements — Gelatin included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Sucralfate on its own and move Gelatin to a meal later in the day.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Sucralfate products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

D O S A G E A N D A D M INI S T R A T I O N A cti v e D u oden a l Ulc e r : The recommended adult oral dosage for duodenal ulcer is 1 g four times per day on an empty stomach.

From the Dosage and Administration section of the FDA label we read for Sucralfate — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

From our Q&A

Questions About Gelatin or Sucralfate

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Gelatin or Sucralfate, 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 Sucralfate

This page covers Gelatin only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Sucralfate page lists 17 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 9 minor.

From our pharmacist’s overview on the Sucralfate page

“If you take sucralfate (Carafate) to heal an ulcer, keep activated charcoal well away from it. Charcoal carries the sole major rating on this list because it adsorbs drugs in the digestive tract, and sucralfate works entirely there, forming a protective coating over damaged stomach lining rather than circulating through the body.”

Reviewed by 2 · Jul 18, 2026

Open the Sucralfate interaction page

One more smart check

Taking Gelatin as Part of a Dietary Supplement Product? Check It for Interactions

We hold 269 real supplement products containing Gelatin, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Gelatin. Even though Gelatin itself has no known interaction with Sucralfate, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Gelatin and Sucralfate 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 Gelatin
Top half

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

29 days ago today
Medication Sucralfate
Top half

#750 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 Gelatin reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Gelatin and Sucralfate records this page draws on were last updated July 11, 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 Gelatin

What is Gelatin?

  • Joint and bone health
  • Skin, hair, and nail support
  • Source of dietary protein
  • Digestive comfort
  • Capsule shells for medicines and supplements

Gelatin is a protein made from animal collagen, used as a food, a capsule ingredient, and a supplement for joint, skin, and bone health. For most health uses, the evidence is limited or mixed, though it is generally safe as a food. If you have allergies, dietary restrictions, or a health condition, check with your pharmacist or doctor first.

Collagen derived from animal skin, bones, and connective tissue (usually pork or beef) · Powder, capsules, gummies, food products (Jell-O type desserts), and collagen/gelatin drinks

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

Gelatin: dosing

There is no official, standardized dose of gelatin for any health condition. The amount used in studies varies widely, and it is not clear what dose, if any, provides a health benefit.If you choose to use a gelatin supplement, follow the directions on the product label and do not exceed the recommended amount.

From our Gelatin monograph — the full record covers uses, side effects and every documented interaction.

Read the full Gelatin monograph & all interactions
Medication

About Sucralfate

What Is Sucralfate Used For?

Brand names: Carafate, Antepsin

Sucralfate — available as tablets and oral suspension under brand names including Carafate — is used for the short-term treatment (up to 8 weeks) of active duodenal ulcers.

Carafate tablets and sucralfate tablets are also approved for maintenance therapy — meaning a lower dose taken after an ulcer heals to help keep it from coming back.

Most-Reported Side Effects for Sucralfate

From FAERS, the FDA’s public side-effect reporting system (23,819 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Nausea 2,353 reports
Fatigue 1,798 reports
Diarrhea 1,764 reports
Headache 1,429 reports
Vomiting 1,411 reports
See full Sucralfate drug information
Keep checking

Other Drugs & Gelatin

Browse every other medication we’ve checked against Gelatin — 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
No interaction 2,829 drugs checked — show the list
Evidence & sources

Gelatin References

The 11 references that drive our Gelatin 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. Schwick HG, Heide K. Immunochemistry and immunology of collagen and gelatin. Bibl Haematol 1969;33:111-25. PubMed
  3. Moskowitz RW. Role of collagen hydrolysate in bone and joint disease.Semin Arthritis Rheum 2000;30:87-99. PubMed
  4. Kelso JM. The gelatin story. J Allergy Clin Immunol 1999;103:200-2.
  5. Nakayama T, Aizawa C, Kuno-Sakai H. A clinical analysis of gelatin allergy and determination of its causal relationship to the previous administration of gelatin-containing acellular pertussis vaccine combined with diphtheria and tetanus toxoids. J Allerg PubMed
  6. Sakaguchi M, Inouye S. Anaphylaxis to gelatin-containing rectal suppositories. J Allergy Clin Immunol 2001;108:1033-4. PubMed
  7. PDR Electronic Library. Montvale, NJ: Medical Economics Company, Inc., 2001.
  8. de la Fuente Tornero E, Vega Castro A, de Sierra Hernández PÁ, et al. Kounis syndrome during anesthesia: Presentation of indolent systemic mastocytosis: A case report. A Case Rep. 2017;8(9):226-228. PubMed
  9. Ventura Spagnolo E, Calapai G, Minciullo PL, Mannucci C, Asmundo A, Gangemi S. Lethal anaphylactic reaction to intravenous gelatin in the course of surgery. Am J Ther. 2016;23(6):e1344-e1346. PubMed
  10. Li Y, He H, Yang L, Li X, Li D, Luo S. Therapeutic effect of Colla corii asini on improving anemia and hemoglobin compositions in pregnant women with thalassemia. Int J Hematol. 2016;104(5):559-565. PubMed
  11. Coury JR, Skaggs KF, Marciano GF, et al. Intraoperative Anaphylaxis to the Bovine Flowable Gelatin Matrix: A Report of 2 Cases. JBJS Case Connect 2022;12(1). 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 Gelatin and Sucralfate Together: Common Questions

Is it safe to take Gelatin with Sucralfate?
We do not list a known interaction between Gelatin and Sucralfate. 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 Gelatin and Sucralfate have any of the same side effects?
Yes — our sources link each of them separately to 5 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.
Should I take Gelatin and Sucralfate at the same time of day?
At least one FDA label for a product containing Sucralfate says to take it on an empty stomach, and supplements are usually taken with a meal — so taking them together at breakfast is the easy mistake. Where that applies, keep Sucralfate on its own and move Gelatin to a meal later in the day. Food instructions belong to the product rather than the ingredient, so check the directions on your own box. This is about absorption, not an interaction.
Does Sucralfate interact with any supplements?
Yes. Sucralfate has documented interactions with 17 supplements in our database — Gelatin is not one of them. The Sucralfate interaction page linked on this page lists every one, ranked by severity.

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

Still Have a Question About Sucralfate and Gelatin?

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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.