Pancreatic Enzyme Products + Doxycycline
Doxycycline brand names: Vibra-Tabs, Vibramycin, Doryx, Monodox, Doxycin, and others.
We found no known interaction between Pancreatic Enzyme Products and Doxycycline 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 Doxycycline 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.
Pancreatic Enzyme Products and Doxycycline
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 Doxycycline and Pancreatic Enzyme Products 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.
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.
Pancreatic Enzyme Products safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Why No Interaction Is Listed for Doxycycline
Interactions in our licensed database are recorded against drug classes, not just single drug names. Doxycycline is filed under 9 classifications — including tetracycline antibiotics, antibiotic drugs, p-glycoprotein substrates. Pancreatic Enzyme Products has documented interactions with 1 drug class — the most serious being acarbose (precose, prandase) (moderate) — and none of Doxycycline’s classifications are among them.
Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.
Pancreatic Enzyme Products Does Interact With Other Medications
Pancreatic Enzyme Products has 1 moderate known drug interaction in our database — Doxycycline isn’t one of them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Pancreatic Enzyme Products
We haven’t checked that one against Pancreatic Enzyme Products yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Pancreatic Enzyme Products. Pick one to open its full report.
Some Doxycycline Products Have a Food Rule — Pancreatic Enzyme Products Should Not Break It
At least one FDA label for a product containing Doxycycline says to take it on an empty stomach. Most supplements — Pancreatic Enzyme Products included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Doxycycline on its own and move Pancreatic Enzyme Products 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 Doxycycline 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.
2 DOSAGE AND ADMINISTRATION Take one Doxycycline capsule (40 mg) once daily in the morning on an empty stomach, preferably at least one hour prior to or two hours after meals.
From the Dosage and Administration section of the FDA label we read for Doxycycline — 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.
Questions About Pancreatic Enzyme Products or Doxycycline
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Pancreatic Enzyme Products or Doxycycline, 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:
- Does Ginger Water Interfere With Amoxicillin-Clavulanate? ›
- How Can I Prevent Stomach Pain From Amoxicillin-Clavulanate? ›
- Help With Taking Vitamins After Clarithromycin ›
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 Doxycycline
This page covers Pancreatic Enzyme Products only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Doxycycline page lists 166 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Asarabacca (major), Beer (major), Oleander (major) and Siberian Cocklebur (major).
By severity: 7 major · 139 moderate · 20 minor.
From our pharmacist’s overview on the Doxycycline page
“St. John's wort is the supplement I would flag first for anyone on doxycycline (Vibramycin, Doryx), because it can speed the antibiotic out of the body and leave an infection undertreated.”
Reviewed by 2 · Jul 18, 2026
Taking Pancreatic Enzyme Products as Part of a Dietary Supplement Product? Check It for Interactions
We hold 26 real supplement products containing Pancreatic Enzyme Products, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Pancreatic Enzyme Products. Even though Pancreatic Enzyme Products itself has no known interaction with Doxycycline, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Pancreatic Enzyme Products and Doxycycline 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.
#1,186 of 1,452 supplements looked up here in the last 7 days
#48 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.
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 Pancreatic Enzyme Products reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Pancreatic Enzyme Products and Doxycycline 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.
About Pancreatic Enzyme Products
What is Pancreatic Enzyme Products?
- Trouble digesting food (exocrine pancreatic insufficiency)
- Cystic fibrosis
- Chronic pancreatitis
- After pancreas surgery or removal
- Pancreatic cancer-related digestion problems
- Bloating and gas (over-the-counter products)
Pancreatic enzyme products supply the digestive enzymes (lipase, protease, and amylase) that some people cannot make enough of, helping them break down and absorb food. Prescription versions are well-proven and FDA-approved for conditions like cystic fibrosis and chronic pancreatitis, while over-the-counter 'pancreatin' supplements are not as tightly regulated. Always work with a doctor or pharmacist to get the right product and dose.
Pancreatic tissue (usually from pigs or cattle) · Capsules, delayed-release (enteric-coated) capsules, tablets, and powders
An interaction check asks whether these two react with each other — it does not ask whether Pancreatic Enzyme Products is a good idea for someone in your situation. Here is what our Pancreatic Enzyme Products record says about it on its own.
Pancreatic Enzyme Products: dosing
There is no single dose that fits everyone. Prescription pancreatic enzymes are dosed based on the amount of lipase units per meal, the person's body weight (especially in children), and how severe the enzyme shortage is. Your doctor will adjust the dose based on your symptoms, weight, and nutrition.In general, these products are taken with meals and snacks, often with the dose split so part is taken at the start of the meal. Enteric-coated capsules should usually be swallowed whole and not crushed or chewed.
From our Pancreatic Enzyme Products monograph — the full record covers uses, side effects and every documented interaction.
About Doxycycline
What Is Doxycycline Used For?
Brand names: Vibra-Tabs, Vibramycin, Doryx, Monodox, Doxycin, Doxy, Doxylin, Doxy-D, Periostat, Doxycycline Injection, Oracea, Xyrosa
Doxycycline belongs to the tetracycline family of antibiotics. It's prescribed for many types of bacterial infections, including respiratory tract infections, sexually transmitted infections (STIs), tick-borne illnesses like Rocky Mountain spotted fever, and eye infections. It's also used to help prevent malaria and, in some cases, as a helper treatment for severe acne.
In situations where penicillin-type antibiotics can't be used — due to allergy, for example — doxycycline can step in as an alternative. It should only be used for infections that are proven or strongly suspected to be caused by bacteria.
Other Drugs & Pancreatic Enzyme Products
Browse every other medication we’ve checked against Pancreatic Enzyme Products — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
1 interaction
No interaction 2,828 drugs checked — show the list
We also checked Pancreatic Enzyme Products against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Warfarin ›
- Methylphenidate ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Ivermectin ›
- Metoprolol ›
- Aspirin ›
- Rivaroxaban ›
- Acetaminophen ›
- Rosuvastatin ›
- Abemaciclib ›
- Escitalopram ›
- Clopidogrel ›
- Tadalafil ›
- Atorvastatin ›
- Docusate ›
- Tirzepatide ›
- Ibuprofen ›
- Valacyclovir ›
- Hydroxyurea ›
- Methamphetamine ›
- Warfarin Sodium ›
- Semaglutide ›
- Sumatriptan ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Metformin ›
- Amoxicillin ›
- Lisinopril ›
- Amitriptyline ›
- Bupropion ›
- Methotrexate ›
- Bendamustine ›
- Amphetamine ›
- Acyclovir ›
- Isotretinoin ›
- Fluoxetine ›
- Pregabalin ›
- Lamotrigine ›
- Azithromycin ›
- Amlodipine Besylate ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Dextroamphetamine ›
- Methylene Blue ›
- Clonazepam ›
- Quetiapine ›
- Omeprazole ›
- Letrozole ›
- Naproxen ›
- Duloxetine ›
- Buspirone ›
- Citalopram ›
- Ciprofloxacin ›
- Bisoprolol ›
Showing the 60 most looked-up of 2,828 medications checked with no known interaction — see the full Pancreatic Enzyme Products list.
Pancreatic Enzyme Products References
The 40 references that drive our Pancreatic Enzyme Products 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.
- Martindale W. Martindale the Extra Pharmacopoeia. Pharmaceutical Press, 1999.
- McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
- Smyth RL, van Velzen D, Smyth AR, et al. Strictures of ascending colon in cystic fibrosis and high-strength pancreatic enzymes. Lancet 1994;343:85-6. PubMed
- Bergner A, Bergner RK. Pulmonary hypersensitivity associated with pancreatin powder exposure. Pediatrics 1975;55:814-7. DOI
- Wiessmann KJ, Baur X. Occupational lung disease following long-term inhalation of pancreatic extracts. Eur J Respir Dis 1985;66:13-20.
- Bragelmann, R., Armbrecht, U., Rosemeyer, D., Schneider, B., Zilly, W., and Stockbrugger, R. W. The effect of pancreatic enzyme supplementation in patients with steatorrhoea after total gastrectomy. Eur.J Gastroenterol.Hepatol. 1999;11(3):231-237. PubMed
- Halm, U., Loser, C., Lohr, M., Katschinski, M., and Mossner, J. A double-blind, randomized, multicentre, crossover study to prove equivalence of pancreatin minimicrospheres versus microspheres in exocrine pancreatic insufficiency. Aliment.Pharmacol.Ther. PubMed
- O'Keefe, S. J., Cariem, A. K., and Levy, M. The exacerbation of pancreatic endocrine dysfunction by potent pancreatic exocrine supplements in patients with chronic pancreatitis. J Clin Gastroenterol. 2001;32(4):319-323. PubMed
- Shin, S. Y., Hur, G. Y., Ye, Y. M., and Park, H. S. A case of occupational rhinitis caused by porcine pancreatic extract developing into occupational asthma. J Korean Med Sci. 2008;23(2):347-349. PubMed
- Andersen, H. O., Hjelt, K., Waever, E., and Overgaard, K. The age-related incidence of meconium ileus equivalent in a cystic fibrosis population: the impact of high-energy intake. J Pediatr Gastroenterol.Nutr 1990;11(3):356-360. DOI
- Ramo, O. J., Puolakkainen, P. A., Seppala, K., and Schroder, T. M. Self-administration of enzyme substitution in the treatment of exocrine pancreatic insufficiency. Scand.J Gastroenterol. 1989;24(6):688-692. PubMed
- Aparisi, L., Rodrigo, J. M., Serra, M. A., Del Olmo, J., Bisquert, M., and Raga, F. [Efficacy of a new microencapsulated pancreatin versus a conventional preparation, in the treatment of steatorrhea of pancreatic origin]. Rev.Esp.Enferm.Apar.Dig. 1989;76
- Ansaldi-Balocco, N., Santini, B., and Sarchi, C. Efficacy of pancreatic enzyme supplementation in children with cystic fibrosis: comparison of two preparations by random crossover study and a retrospective study of the same patients at two different ages DOI
- Beverley, D. W., Kelleher, J., Macdonald, A., Littlewood, J. M., Robinson, T., and Walters, M. P. Comparison of four pancreatic extracts in cystic fibrosis. Arch Dis.Child 1987;62(6):564-568. PubMed
- Silber, W. Pankreoflat in benign diseases of the oesophagus: a blind therapeutic trial. S.Afr.Med J 7-7-1973;47(26):1137-1138.
- Sack, J., Blau, H., Goldfarb, D., Ben-Zaray, S., and Katznelson, D. Hyperuricosuria in cystic fibrosis patients treated with pancreatic enzyme supplements. A study of 16 patients in Israel. Isr.J Med Sci. 1980;16(6):417-419.
- Oades, P. J., Bush, A., Ong, P. S., and Brereton, R. J. High-strength pancreatic enzyme supplements and large-bowel stricture in cystic fibrosis. Lancet 1-8-1994;343(8889):109. DOI
- Mac Sweeney, E. J., Oades, P. J., Buchdahl, R., Rosenthal, M., and Bush, A. Relation of thickening of colon wall to pancreatic-enzyme treatment in cystic fibrosis. Lancet 3-25-1995;345(8952):752-756. PubMed
- Jones, R., Franklin, K., Spicer, R., and Berry, J. Colonic strictures in children with cystic fibrosis on low-strength pancreatic enzymes. Lancet 8-19-1995;346(8973):499. DOI
- Taylor, C. J. and Steiner, G. M. Fibrosing colonopathy in a child on low-dose pancreatin. Lancet 10-21-1995;346(8982):1106-1107. PubMed
- Ong, P. S., Oades, P. J., Bush, A., and Brereton, R. J. Colonic stricture in a boy with cystic fibrosis. Postgrad.Med J 1995;71(835):309-312. PubMed
- Milla, C. E., Wielinski, C. L., and Warwick, W. J. High-strength pancreatic enzymes. Lancet 3-5-1994;343(8897):599. DOI
- McHugh, K., Thomson, A., and Tam, P. Case report: colonic stricture and fibrosis associated with high-strength pancreatic enzymes in a child with cystic fibrosis. Br.J Radiol. 1994;67(801):900-901. PubMed
- Nouisa-Arvanitakis, S., Stapleton, F. B., Linshaw, M. A., and Kennedy, J. Therapeutic approach to pancreatic extract-induced hyperuricosuria in cystic fibrosis. J Pediatr 1977;90(2):302-305. PubMed
- Lancellotti, L., Cabrini, G., Zanolla, L., and Mastella, G. High- versus low-lipase acid-resistant enzyme preparations in cystic fibrosis: a crossover randomized clinical trial. J Pediatr.Gastroenterol.Nutr. 1996;22(1):73-78. DOI
- FitzSimmons, S. C., Burkhart, G. A., Borowitz, D., Grand, R. J., Hammerstrom, T., Durie, P. R., Lloyd-Still, J. D., and Lowenfels, A. B. High-dose pancreatic-enzyme supplements and fibrosing colonopathy in children with cystic fibrosis. N.Engl.J Med 5-1- PubMed
- Stapleton, F. B., Kennedy, J., Nousia-Arvanitakis, S., and Linshaw, M. A. Hyperuricosuria due to high-dose pancreatic extract therapy in cystic fibrosis. N.Engl.J Med 7-29-1976;295(5):246-248. PubMed
- Bruno, M. J., Haverkort, E. B., Tijssen, G. P., Tytgat, G. N., and van Leeuwen, D. J. Placebo controlled trial of enteric coated pancreatin microsphere treatment in patients with unresectable cancer of the pancreatic head region. Gut 1998;42(1):92-96. PubMed
- Miyoshi, H. and Kanzaki, T. Drug eruption (erythema multiforme type) due to a digestive enzyme drug. J Dermatol. 1998;25(1):28-31. PubMed
- Chazalette, J. P. A Double-Blind Placebo-Controlled Trial of a Pancreatic Enzyme Formulation (Panzytrat 25 000) in the Treatment of Impaired Lipid Digestion in Patients with Cystic Fibrosis. Drug Investigation 1993;5(5):274. DOI
- Seiler CM, Izbicki J, Varga-Szabó L, et al. Randomised clinical trial: a 1-week, double-blind, placebo-controlled study of pancreatin 25 000 Ph. Eur. minimicrospheres (Creon 25000 MMS) for pancreatic exocrine insufficiency after pancreatic surgery, with a
- Lee SK, Kim MS, Lee UH. Acute generalized exanthematous pustulosis induced by a digestive enzyme drug, Festal(®). Clin Exp Dermatol. 2018;43(3):321-323.
- Whitcomb DC, Bodhani A, Beckmann K, et al. Efficacy and safety of pancrelipase/pancreatin in patients with exocrine pancreatic insufficiency and a medical history of diabetes mellitus. Pancreas. 2016;45(5):679-86. PubMed
- Ramesh H, Reddy N, Bhatia S, et al. A 51-week, open-label clinical trial in India to assess the efficacy and safety of pancreatin 40000 enteric-coated minimicrospheres in patients with pancreatic exocrine insufficiency due to chronic pancreatitis. Pancre PubMed
- Toskes PP, Secci A, Thieroff-Ekerdt R; ZENPEP Study Group. Efficacy of a novel pancreatic enzyme product, EUR-1008 (Zenpep), in patients with exocrine pancreatic insufficiency due to chronic pancreatitis. Pancreas. 2011;40(3):376-82. PubMed
- Kahl S, Schütte K, Glasbrenner B, et al. The effect of oral pancreatic enzyme supplementation on the course and outcome of acute pancreatitis: a randomized, double-blind parallel-group study. JOP. 2014;15(2):165-74.
- Trapnell BC, Maguiness K, Graff GR, Boyd D, Beckmann K, Caras S. Efficacy and safety of Creon 24,000 in subjects with exocrine pancreatic insufficiency due to cystic fibrosis. J Cyst Fibros. 2009;8(6):370-7. PubMed
- Carroccio A, Guarino A, Zuin G, et al. Efficacy of oral pancreatic enzyme therapy for the treatment of fat malabsorption in HIV-infected patients. Aliment Pharmacol Ther. 2001;15(10):1619-25. PubMed
- Guidance for Industry Exocrine Pancreatic Insufficiency Drug Products - Submitting NDAs. Available at: https://www.fda.gov/ucm/groups/fdagov-public/@fdagov-drugs-gen/documents/document/ucm071651.pdf. Accessed March 29, 2019.
- Amoateng R, Hardman B, Liu C, Austin S. Rare case of pancrelipase therapy-induced neutropaenia. BMJ Case Rep 2021;14(3):e241799. 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.
Doxycycline Is Linked to Lower Levels of 7 Nutrients
Natural Medicines records Doxycycline as a medicine that can lower these. This is not an interaction with Pancreatic Enzyme Products — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Doxycycline nutrient depletion report ›
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Pancreatic Enzyme Products and Doxycycline Together: Common Questions
Is it safe to take Pancreatic Enzyme Products with Doxycycline?
Do Pancreatic Enzyme Products and Doxycycline have any of the same side effects?
Should I take Pancreatic Enzyme Products and Doxycycline at the same time of day?
How was the Pancreatic Enzyme Products and Doxycycline combination checked?
Does Pancreatic Enzyme Products interact with any other medications?
Does Doxycycline interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Doxycycline and Pancreatic Enzyme Products?
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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.