Drug & supplement interaction

Proline + Diclofenac Sodium

Diclofenac Sodium brand names: Voltaren XR, Voltaren, Voltaren SR, Diclo, Difenac, and others.

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

We found no known interaction between Proline and Diclofenac Sodium 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.

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Interaction report

Proline and Diclofenac Sodium

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 Diclofenac Sodium and Proline 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 Proline at all — not against Diclofenac Sodium, 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.

Proline safety at a glance

Proline overall Use caution Generally considered low-risk from food, but supplement safety has not been well studied.
Pregnancy Use caution Not enough reliable data on supplemental doses, so it is best to avoid extra amounts unless your doctor advises.
Breastfeeding Use caution Safety of supplemental doses while breastfeeding is not established, so use caution.

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

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

What Diclofenac Sodium’s Own FDA Label Lists

This is not an interaction — none of it involves Proline. These are the most notable effects listed in the ADVERSE REACTIONS section of Diclofenac Sodium’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 10 of them are worth acting on rather than waiting out — marked below.

  • Loss of vision Worth acting on
  • Hearing loss Worth acting on
  • Bleeding in the gut Worth acting on
  • High potassium Worth acting on
  • Unsteadiness Worth acting on
  • Low blood sugar Worth acting on
  • A heart attack Worth acting on
  • Pancreatitis Worth acting on
  • Yellowing of the skin or eyes Worth acting on
  • Heart failure Worth acting on

Showing the 10 most notable of 73 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Diclofenac Sodium. Read the label on DailyMed › Where a percentage is shown, it is the share of 155,962 voluntary FDA FAERS reports for Diclofenac Sodium that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Proline’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Proline side to compare — that is a limit of the record, not a statement that Proline has no side effects.

From our Q&A

Questions About Proline or Diclofenac Sodium

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

This page covers Proline only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Diclofenac Sodium page lists 308 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), Danshen (major) and Piracetam (major).

By severity: 7 major · 266 moderate · 35 minor.

From our pharmacist’s overview on the Diclofenac Sodium page

“Diclofenac (Voltaren), a daily mainstay for arthritis and joint pain, comes with a supplement list that calls for real vigilance. Of the 308 ingredients on file, 7 rate major, and roughly two hundred entries share a single theme: anything with blood-thinning activity adds to diclofenac's own bleeding risk, especially in the stomach.”

Reviewed by 2 · Jul 18, 2026

Open the Diclofenac Sodium interaction page

One more smart check

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

We hold 1,054 real supplement products containing Proline, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Proline. Even though Proline itself has no known interaction with Diclofenac Sodium, 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 Proline and Diclofenac Sodium 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 Proline
Top 25%

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

29 days ago today
Medication Diclofenac Sodium
Top 10%

#269 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 Proline reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Proline and Diclofenac Sodium records this page draws on were last updated June 22, 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 Proline

What is Proline?

  • Joint and connective tissue support
  • Skin health and wound healing
  • Collagen production
  • Athletic recovery
  • General amino acid supplementation

Proline is a non-essential amino acid that your body can make on its own and that you also get from protein-rich foods. It is a key building block of collagen, but strong human evidence that taking proline supplements improves skin, joints, or healing is limited. For most healthy people a balanced diet supplies plenty, so talk to your pharmacist or doctor before adding a supplement.

Amino acid (made by the body and found in protein-rich foods) · Capsules, powders, and as part of collagen or amino acid blends

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

Proline: dosing

There is no well-established standard dose of proline as a supplement. Amounts vary widely between products, and proline is often combined with other amino acids or collagen rather than taken alone.If you choose to use a proline-containing product, follow the directions on the label and do not exceed the recommended amount.

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

Read the full Proline monograph & all interactions
Medication

About Diclofenac

What Is Diclofenac Used For?

Brand names: Voltaren XR, Voltaren, Voltaren SR, Diclo, Difenac, Diclo SR, Voltarol, Acoflam, Defenac, Dicloflex, Diclovol, Diclozip, Fenactol, Flamrase, Volraman, Diclomax SR, Diclomax Retard, Motifene 75 mg, Voltarol 75 mg SR, Acoflam 75 SR, Defenac SR, Dexomon 75 SR, Dicloflex 75 SR, Diclovol SR, Fenactol 75 mg SR, Flamatak 75 MR, Flamrase SR, Flexotard MR 75, Rheumatac Retard 75, Rhumalgan CR, Slofenac SR, Volsaid Retard 75, Voltarol Retard, Acoflam Retard, Defenac Retard, Dexomon Retard 100, Dicloflex Retard, Diclovol Retard, Fenactol Retard 100 mg, Flamatak 100 MR, Volsaid Retard 100, Voltarol Ophtha Multidose, Voltarol Ophtha, Pennsaid, Voltaren Emulgel, Dyloject

Diclofenac sodium topical gel is used to treat actinic keratoses (AK) — rough, scaly skin patches that form after years of sun exposure. These patches are considered precancerous, meaning they can develop into skin cancer if left untreated.

This is a topical gel, meaning it is applied directly to the skin over the affected area rather than taken by mouth. It belongs to the NSAID (nonsteroidal anti-inflammatory drug) family.

Most-Reported Side Effects for Diclofenac Sodium

From FAERS, the FDA’s public side-effect reporting system (155,962 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 13,844 reports
Arthralgia 11,333 reports
Rash 10,855 reports
Rheumatoid arthritis 10,744 reports
Abdominal discomfort 9,636 reports
See full Diclofenac drug information
Keep checking

Other Drugs & Proline

Browse every other medication we’ve checked against Proline — 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 Proline 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 Proline list.

See the full Proline interactions page
See every supplement checked against Diclofenac Sodium, ranked by severity
Evidence & sources

Proline References

The 4 references that drive our Proline 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. Jennings A, MacGregor A, Spector T, Cassidy A. Amino acid intakes are associated with bone mineral density and prevalence of low bone mass in women: Evidence from discordant monozygotic twins. J Bone Miner Res. 2016;31(2):326-35. PubMed
  2. Gracia-Marco L, Bel-Serrat S, Cuenca-Garcia M, et al. Amino acids intake and physical fitness among adolescents. Amino Acids. 2017;49(6):1041-1052. PubMed
  3. Jamdar J, Rao B, Netke S, et al. Reduction in tibial shaft fracture healing time with essential nutrient supplementation containing ascorbic acid, lysine, and proline. J Altern Complement Med. 2004;10(6):915-6.
  4. Mehl AA, Damião AO, Viana SD, Andretta CP. Hard-to-heal wounds: a randomised trial of an oral proline-containing supplement to aid repair. J Wound Care 2021;30(1):26-31. 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 Proline and Diclofenac Sodium Together: Common Questions

Is it safe to take Proline with Diclofenac Sodium?
We do not list a known interaction between Proline and Diclofenac Sodium. 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.
Does Diclofenac Sodium interact with any supplements?
Yes. Diclofenac Sodium has documented interactions with 308 supplements in our database — Proline is not one of them. The Diclofenac Sodium 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

Proline monograph Uses, safety profile, and every drug interaction in one place Diclofenac drug information The full plain-English guide to this medication Diclofenac Sodium supplement interactions Every supplement checked against Diclofenac Sodium, 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 4 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Diclofenac Sodium and Proline?

Our pharmacists answer your medication & supplement questions — free.

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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.