Drug & supplement interaction

Nickel + Diltiazem

Diltiazem brand names: Cardizem, Cardizem SR, Diltiaz SR, Cardizem CD, Tiazac, and others.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated July 2026 · Pair last verified Sep 20, 2026

The bottom line No known interaction

We found no known interaction between Nickel and Diltiazem 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 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

Nickel and Diltiazem

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 Diltiazem and Nickel 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.

Nickel safety at a glance

Nickel overall Use caution Nickel is a common allergen and can be toxic at higher doses, so supplements are generally not recommended.

Pregnancy Likely Safe When used orally and appropriately. Nickel is safe to use during pregnancy and lactation in doses below the tolerable upper intake level (UL) of 1 mg daily. The... Read the full pregnancy detail

Breastfeeding Likely Safe When used orally and appropriately. Nickel is safe to use during pregnancy and lactation in doses below the tolerable upper intake level (UL) of 1 mg daily. The... 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 Diltiazem and Nickel? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

How we checked

Why No Interaction Is Listed for Diltiazem

Interactions in our licensed database are recorded against drug classes, not just single drug names. Diltiazem is filed under 9 classifications — including calcium channel blockers, cytochrome p450 1a2 (cyp1a2) inhibitors, cytochrome p450 3a4 (cyp3a4) inhibitors. Nickel has documented interactions with 1 drug class — the most serious being disulfiram (antabuse) (moderate) — and none of Diltiazem’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.

Keep it in perspective

Nickel Does Interact With Other Medications

Nickel has 1 moderate known drug interaction in our database — Diltiazem isn’t one of them. If you take anything else, check it against the full list below.

Moderate 1 No known interaction 2,829 (incl. Diltiazem)

Taking anything else?

Check Another of Your Medications Against Nickel

Covers the 2,830 medications we’ve checked against Nickel. Pick one to open its full report.

What to actually watch for

No Interaction Found — But Data Suggests Nickel and Diltiazem 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.

Shortness of breath Worth acting on reported in 9.6% of FDA reports for Diltiazem Additional detail
Nickel
“Orally and topically, nickel can cause hypersensitivity reactions in sensitized individuals. Nickel sensitivity, which can cause dermatologic and gastrointestinal symptoms, has an estimated prevalence of 11% in the general population, with a higher overall incidence in females than in males. About 10% of nickel-sensitive people react to ingestion of 550-1300 mcg.”

Nickel · Natural Medicines adverse-effect record, reported in allergic rhinitis (hay fever).
6 sources cited

64916. Ring, J., Brockow, K., and Behrendt, H. Adverse reactions to foods. J.Chromatogr.B Biomed.Sci.Appl. 5-25-2001;756(1-2):3-10. PubMed

65017. Nijhawan, R. I., Molenda, M., Zirwas, M. J., and Jacob, S. E. Systemic contact dermatitis. Dermatol.Clin. 2009;27(3):355-64, vii. PubMed

65045. Sunderman, F. W., Jr. A review of the metabolism and toxicology of nickel. Ann.Clin.Lab Sci. 1977;7(5):377-398.

99668. Alinaghi F, Bennike NH, Egeberg A, Thyssen JP, Johansen JD. Prevalence of contact allergy in the general population: A systematic review and meta-analysis. Contact Dermatitis. 2019 Feb;80(2):77-85. PubMed

64994. Thyssen, J. P., Linneberg, A., Menne, T., and Johansen, J. D. The epidemiology of contact allergy in the general population--prevalence and main findings. Contact Dermatitis 2007;57(5):287-299. PubMed

99663. Di Gioacchino M, Ricciardi L, De Pità O, et al. Nickel oral hyposensitization in patients with systemic nickel allergy syndrome. Ann Med. 2014 Feb;46(1):31-7. Epub 2013 Nov 21. PubMed
“Particulate matter-associated nickel exposures have been associated with cardiopulmonary diseases. Nickel exposure may also cause variable degrees of cardiovascular system poisoning. In one case report, a 45-year-old male developed leukocytosis, low-grade fevers, dyspnea, and fatigue after implantation of a cardioverter-defibrillator (ICD).”

Nickel · Natural Medicines adverse-effect record, reported in fatigue.
3 sources cited

65021. Zhang, Z., Chau, P. Y., Lai, H. K., and Wong, C. M. A review of effects of particulate matter-associated nickel and vanadium species on cardiovascular and respiratory systems. Int.J.Environ.Health Res. 2009;19(3):175-185. PubMed

16333. Denkhaus E, Salnikow K. Nickel essentiality, toxicity, and carcinogenicity. Crit Rev Oncol Hematol 2002;42:35-56. PubMed

99670. Fung E, Fong MW, Correa AJ, Yoon AJ, Grazette LP. Fulminant eosinophilic myocarditis following ICD implantation in a patient with undisclosed nickel allergy. Int J Cardiol. 2016 Jan 15;203:1018-9. PubMed
Diltiazem

Listed in the ADVERSE REACTIONS section of the FDA label for Diltiazem, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›
Kidney problems Worth acting on Additional detail
Nickel
“Orally, nickel has been reported to cause nephrotoxicity, especially when consumed in excessive amounts.”

Nickel · Natural Medicines adverse-effect record, reported in drug-induced kidney damage.
3 sources cited

16333. Denkhaus E, Salnikow K. Nickel essentiality, toxicity, and carcinogenicity. Crit Rev Oncol Hematol 2002;42:35-56. PubMed

65009. Das, K. K., Das, S. N., and Dhundasi, S. A. Nickel, its adverse health effects & oxidative stress. Indian J.Med.Res. 2008;128(4):412-425.

65104. Savolainen, H. Biochemical and clinical aspects of nickel toxicity. Rev.Environ.Health 1996;11(4):167-173. PubMed
Diltiazem

Listed in the ADVERSE REACTIONS section of the FDA label for Diltiazem. Read the label on DailyMed ›
Hives Worth acting on Additional detail

Nickel

Recorded for Nickel in the same Natural Medicines adverse-effect record shown under Shortness of breath above.

Diltiazem

Listed in the ADVERSE REACTIONS section of the FDA label for Diltiazem. Read the label on DailyMed ›
A stuffy or runny nose Additional detail
Nickel
“Inhalation of nickel carbonyl has been reported to cause nickel toxicity, including pulmonary edema, acute tracheobronchitis, or diffuse interstitial pneumonitis.

Occupational exposure to nickel has been reported to cause chronic rhinitis, sinusitis, airway narrowing, asthma, bronchitis, reduced lung function, lung fibrosis, nasal polyposis, perforation of the nasal septum, and cancer of the lungs and nasal sinuses.”

Nickel · Natural Medicines adverse-effect record, reported in acute bronchitis.
6 sources cited

16334. Barceloux DG. Nickel. J Toxicol Clin Toxicol 1999;37:239-58.

64905. Kelleher, P., Pacheco, K., and Newman, L. S. Inorganic dust pneumonias: the metal-related parenchymal disorders. Environ.Health Perspect. 2000;108 Suppl 4:685-696. PubMed

61495. Nemery, B. Metal toxicity and the respiratory tract. Eur Respir.J 1990;3(2):202-219. DOI

65045. Sunderman, F. W., Jr. A review of the metabolism and toxicology of nickel. Ann.Clin.Lab Sci. 1977;7(5):377-398.

64933. Leikauf, G. D. Hazardous air pollutants and asthma. Environ.Health Perspect. 2002;110 Suppl 4:505-526. PubMed

65077. Ruegger, M. [Lung disorders due to metals]. Schweiz.Med.Wochenschr. 3-11-1995;125(10):467-474.
Diltiazem

Listed in the ADVERSE REACTIONS section of the FDA label for Diltiazem. Read the label on DailyMed ›
Tiredness reported in 7.9% of FDA reports for Diltiazem Additional detail

Nickel

Recorded for Nickel in the same Natural Medicines adverse-effect record shown under Shortness of breath above.

Diltiazem

Listed in the ADVERSE REACTIONS section of the FDA label for Diltiazem, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›
Swelling Additional detail

Nickel

Recorded for Nickel in the same Natural Medicines adverse-effect record shown under A stuffy or runny nose above.

Diltiazem

Listed in the ADVERSE REACTIONS section of the FDA label for Diltiazem. Read the label on DailyMed ›
Diarrhea / Nausea / Vomiting reported in 7.1% of FDA reports for Diltiazem Additional detail
Nickel
“Orally, consuming high doses of nickel 0.5-2.5 grams has been reported to cause nausea, vomiting, abdominal pain, and diarrhea. Patients with systemic nickel allergy syndrome (SNAS) can experience colic and diarrhea after consumption of nickel-rich foods.”

Nickel · Natural Medicines adverse-effect record, reported in allergic rhinitis (hay fever).
1 source cited

99663. Di Gioacchino M, Ricciardi L, De Pità O, et al. Nickel oral hyposensitization in patients with systemic nickel allergy syndrome. Ann Med. 2014 Feb;46(1):31-7. Epub 2013 Nov 21. PubMed
Diltiazem

Listed in the ADVERSE REACTIONS section of the FDA label for Diltiazem, and in voluntary FDA adverse-event reports. Read the label on DailyMed ›
A skin rash Additional detail
Nickel
“Orally and topically, nickel can cause dermatitis and other hypersensitivity reactions in sensitized individuals. Nickel exposure may cause systemic contact dermatitis. Orally, nickel sulfate has been associated with classic systemic allergic contact eczema. Topical exposure can occur from the use of common equipment containing nickel.”

Nickel · Natural Medicines adverse-effect record, reported in allergic rhinitis (hay fever).
6 sources cited

65045. Sunderman, F. W., Jr. A review of the metabolism and toxicology of nickel. Ann.Clin.Lab Sci. 1977;7(5):377-398.

65017. Nijhawan, R. I., Molenda, M., Zirwas, M. J., and Jacob, S. E. Systemic contact dermatitis. Dermatol.Clin. 2009;27(3):355-64, vii. PubMed

64916. Ring, J., Brockow, K., and Behrendt, H. Adverse reactions to foods. J.Chromatogr.B Biomed.Sci.Appl. 5-25-2001;756(1-2):3-10. PubMed

99665. Maridet C, Atge B, Amici JM, Taïeb A, Milpied B. The electronic cigarette: the new source of nickel contact allergy of the 21st century? Contact Dermatitis. 2015 Jul;73(1):49-50. Epub 2015 Mar 20. PubMed

99669. Shim TN, Kosztyuova T. Allergic Contact Dermatitis to Electronic Cigarette. Dermatitis. 2018 Mar/Apr;29(2):94-95. PubMed

99671. Ledon JA, Tosti A. CrossFit-Associated Allergic Contact Dermatitis. Dermatitis. 2017 Nov/Dec;28(6):368. PubMed
Diltiazem

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

Reported for Nickel but not commonly for Diltiazem: a severe allergic reaction, an allergic reaction, stomach pain and bone thinning.

Effects for Diltiazem come from the ADVERSE REACTIONS section of its FDA label; effects for Nickel come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 34,400 voluntary FDA FAERS reports for Diltiazem that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Nickel in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Safe

When used orally and appropriately. Nickel is safe to use during pregnancy and lactation in doses below the tolerable upper intake level (UL) of 1 mg daily. There is insufficient reliable information available about the safety of nickel when taken in doses above the UL during pregnancy and lactation.

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

From our Q&A

Questions About Nickel or Diltiazem

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

This page covers Nickel only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Diltiazem page lists 260 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Coleus (major) and Grapefruit (major).

By severity: 7 major · 214 moderate · 39 minor.

From our pharmacist’s overview on the Diltiazem page

“Someone on diltiazem (Cardizem, Tiazac) is usually managing blood pressure, angina, or a fast heart rhythm, so this list deserves genuine care. Seven of the 260 ingredients on file carry a major rating, and two of those are things people actually buy: grapefruit, which blocks the enzyme that clears diltiazem and can push its blood leve…”

Reviewed by 2 · Jul 18, 2026

Open the Diltiazem interaction page

One more smart check

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

We hold 685 real supplement products containing Nickel, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Nickel. Even though Nickel itself has no known interaction with Diltiazem, 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 Nickel and Diltiazem 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 Nickel

Top 25%

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

29 days ago today

Medication Diltiazem

Top 10%

#246 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 Nickel reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Nickel and Diltiazem 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.

Data structure & sourcing designed and verified by Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Nickel

What is Nickel?

General trace-mineral supplementation
Supporting iron and other nutrient metabolism (theoretical)
Marketed for bone or hormone support

Nickel is a trace element found in tiny amounts in many foods, and most people get plenty through diet. There is no proven need for nickel supplements, and because nickel is a common cause of allergic reactions and can be toxic in higher amounts, most people should not take it. Talk with your pharmacist or doctor before using any nickel-containing supplement.

Trace mineral (metallic element) · Tablets, capsules, and as part of some multivitamin or trace-mineral supplements (often as nickel sulfate or nickel chloride)

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

Nickel: dosing

There is no established recommended supplement dose of nickel, because a clear human requirement has not been proven and most people get enough from food. Health authorities have set upper limits to help avoid harmful exposure, but this does not mean people need to take supplements to reach any amount.If a product contains nickel, follow the label and do not take more than directed.

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

Read the full Nickel monograph & all interactions

Medication

About Diltiazem

What Is Diltiazem Used For?

Brand names: Cardizem, Cardizem SR, Diltiaz SR, Cardizem CD, Tiazac, Diltiaz XT, Diltiaz CD, Dilacor, Diltiaz, Cardizem LA, Dilacor XR, Cartia XT, Tiamate, Adizem-SR, Adizem-XL, Angitil SR, Angitil XL, Calcicard CR, Dilcardia SR, Dilzem SR, Dilzem XL, Slozem, Tildiem LA, Tildiem Retard, Viazem XL, Zemtard 120XL, Zemtard 180XL, Zemtard 240XL, Zemtard 300XL

Oral extended-release forms of diltiazem — including Matzim LA, Cardizem LA, Cartia, Cartia XT, Tiadylt ER, and various generic capsules and tablets — are used to treat high blood pressure (hypertension) and chronic stable angina (chest pain brought on by activity). Some capsule formulations, including Cartia, Cartia XT, and certain generics, are also approved for angina due to coronary artery spasm (sudden chest pain caused by a sudden tightening of a coronary artery).

Injectable forms of diltiazem are used in hospital settings to temporarily slow a dangerously fast heart rate in atrial fibrillation or atrial flutter (rapid, irregular heart rhythms), and to restore a normal heart rhythm in paroxysmal supraventricular tachycardia (PSVT) — sudden episodes of a very fast but regular heartbeat originating above the heart's lower chambers.

Most-Reported Side Effects for Diltiazem

From FAERS, the FDA’s public side-effect reporting system (34,400 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Dyspnea 3,309 reports

Fatigue 2,733 reports

Nausea 2,454 reports

Dizziness 2,174 reports

Diarrhea 2,113 reports

See full Diltiazem drug information

Keep checking

Other Drugs & Nickel

Browse every other medication we’ve checked against Nickel — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major

1Moderate

0Minor

2,828No known interaction

1 Moderate 2,828 No interaction

Moderate

1 interaction

Disulfiram ›

No interaction 2,828 drugs checked — show the list

We also checked Nickel against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,828 medications checked with no known interaction — see the full Nickel list.

See the full Nickel interactions page

See every supplement checked against Diltiazem, ranked by severity

Evidence & sources

Nickel References

The 76 references that drive our Nickel 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.

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.
Sharma AD. Disulfiram and low nickel diet in the management of hand eczema: a clinical study. Indian J Dermatol Venereol Leprol 2006;72:113-8. PubMed
Denkhaus E, Salnikow K. Nickel essentiality, toxicity, and carcinogenicity. Crit Rev Oncol Hematol 2002;42:35-56. PubMed
Barceloux DG. Nickel. J Toxicol Clin Toxicol 1999;37:239-58.
Sunderman, F. W., Jr. Nasal toxicity, carcinogenicity, and olfactory uptake of metals. Ann.Clin.Lab Sci 2001;31(1):3-24.
Hayes, R. B. The carcinogenicity of metals in humans. Cancer Causes Control 1997;8(3):371-385. PubMed
Nemery, B. Metal toxicity and the respiratory tract. Eur Respir.J 1990;3(2):202-219. DOI
Andersen, A., Barlow, L., Engeland, A., Kjaerheim, K., Lynge, E., and Pukkala, E. Work-related cancer in the Nordic countries. Scand.J.Work Environ.Health 1999;25 Suppl 2:1-116.
Haber, L. T., Erdreicht, L., Diamond, G. L., Maier, A. M., Ratney, R., Zhao, Q., and Dourson, M. L. Hazard identification and dose response of inhaled nickel-soluble salts. Regul.Toxicol.Pharmacol. 2000;31(2 Pt 1):210-230. PubMed
Kelleher, P., Pacheco, K., and Newman, L. S. Inorganic dust pneumonias: the metal-related parenchymal disorders. Environ.Health Perspect. 2000;108 Suppl 4:685-696. PubMed
Seilkop, S. K. Occupational exposures and pancreatic cancer: a meta-analysis. Occup.Environ.Med. 2001;58(1):63-64. PubMed
Williams, M. D. and Sandler, A. B. The epidemiology of lung cancer. Cancer Treat.Res. 2001;105:31-52. PubMed
Laffargue, P., Hildebrand, H. F., Lecomte-Houcke, M., Biehl, V., Breme, J., and Decoulx, J. [Malignant fibrous histiocytoma of bone 20 years after femoral fracture treated by plate-screw fixation: analysis of corrosion products and their role in malignan
Ring, J., Brockow, K., and Behrendt, H. Adverse reactions to foods. J.Chromatogr.B Biomed.Sci.Appl. 5-25-2001;756(1-2):3-10. PubMed
Egedahl, R., Carpenter, M., and Lundell, D. Mortality experience among employees at a hydrometallurgical nickel refinery and fertiliser complex in Fort Saskatchewan, Alberta (1954-95). Occup.Environ.Med. 2001;58(11):711-715. PubMed
Leikauf, G. D. Hazardous air pollutants and asthma. Environ.Health Perspect. 2002;110 Suppl 4:505-526. PubMed
Oller, A. R. Respiratory carcinogenicity assessment of soluble nickel compounds. Environ.Health Perspect. 2002;110 Suppl 5:841-844. PubMed
Kielhorn, J., Melber, C., Keller, D., and Mangelsdorf, I. Palladium--a review of exposure and effects to human health. Int.J.Hyg.Environ.Health 2002;205(6):417-432. PubMed
Grimsrud, T. K., Berge, S. R., Haldorsen, T., and Andersen, A. Exposure to different forms of nickel and risk of lung cancer. Am.J.Epidemiol. 12-15-2002;156(12):1123-1132. PubMed
Verougstraete, V., Lison, D., and Hotz, P. Cadmium, lung and prostate cancer: a systematic review of recent epidemiological data. J.Toxicol.Environ.Health B Crit Rev. 2003;6(3):227-255. PubMed
Nikula, K. J. and Green, F. H. Animal models of chronic bronchitis and their relevance to studies of particle-induced disease. Inhal.Toxicol. 2000;12 Suppl 4:123-153. PubMed
Comba, P. and Belli, S. [Etiological epidemiology of tumors of the nasal cavities and the paranasal sinuses]. Ann.Ist.Super.Sanita 1992;28(1):121-132.
Sanchez-Morillas, L., Reano, Martos M., Rodriguez, Mosquera M., Iglesias, Cadarso C., Gonzalez, Sanchez L., and Dominguez Lazaro, A. R. [Baboon syndrome]. Allergol.Immunopathol.(Madr.) 2004;32(1):43-45.
Coultas, D. B. and Samet, J. M. Occupational lung cancer. Clin.Chest Med. 1992;13(2):341-354. DOI
Garner, L. A. Contact dermatitis to metals. Dermatol.Ther. 2004;17(4):321-327. PubMed
Sorahan, T. and Williams, S. P. Mortality of workers at a nickel carbonyl refinery, 1958-2000. Occup.Environ.Med. 2005;62(2):80-85. PubMed
Alberg, A. J., Brock, M. V., and Samet, J. M. Epidemiology of lung cancer: looking to the future. J.Clin.Oncol. 5-10-2005;23(14):3175-3185. PubMed
Blanusa, M., Varnai, V. M., Piasek, M., and Kostial, K. Chelators as antidotes of metal toxicity: therapeutic and experimental aspects. Curr.Med.Chem. 2005;12(23):2771-2794. PubMed
Grimsrud, T. K. and Peto, J. Persisting risk of nickel related lung cancer and nasal cancer among Clydach refiners. Occup.Environ.Med. 2006;63(5):365-366.
Hostynek, J. J. Sensitization to nickel: etiology, epidemiology, immune reactions, prevention, and therapy. Rev.Environ.Health 2006;21(4):253-280. PubMed
Das, K. K. and Buchner, V. Effect of nickel exposure on peripheral tissues: role of oxidative stress in toxicity and possible protection by ascorbic acid. Rev.Environ.Health 2007;22(2):157-173. PubMed
Thyssen, J. P., Linneberg, A., Menne, T., and Johansen, J. D. The epidemiology of contact allergy in the general population--prevalence and main findings. Contact Dermatitis 2007;57(5):287-299. PubMed
Czarnobilska, E., Obtulowicz, K., and Wsolek, K. [Type IV of hypersensitivity and its subtypes]. Przegl.Lek. 2007;64(7-8):506-508.
Sunderman, F. W., Sr. Therapeutic properties of sodium diethyldithiocarbamate: its role as an inhibitor in the progression of AIDS. Ann.Clin.Lab Sci. 1991;21(1):70-81.
Schmahl, D. [Etiology of bronchial cancer: smoking, passive smoking, environment and occupation]. Pneumologie 1991;45(4):134-136.
Das, K. K., Das, S. N., and Dhundasi, S. A. Nickel, its adverse health effects & oxidative stress. Indian J.Med.Res. 2008;128(4):412-425.
Bruske-Hohlfeld, I. Environmental and occupational risk factors for lung cancer. Methods Mol.Biol. 2009;472:3-23. PubMed
Thyssen, J. P., Carlsen, B. C., and Menne, T. Nickel sensitization, hand eczema, and loss-of-function mutations in the filaggrin gene. Dermatitis 2008;19(6):303-307. DOI
Nijhawan, R. I., Molenda, M., Zirwas, M. J., and Jacob, S. E. Systemic contact dermatitis. Dermatol.Clin. 2009;27(3):355-64, vii. PubMed
Zhang, Z., Chau, P. Y., Lai, H. K., and Wong, C. M. A review of effects of particulate matter-associated nickel and vanadium species on cardiovascular and respiratory systems. Int.J.Environ.Health Res. 2009;19(3):175-185. PubMed
Wataha, J. C. and Shor, K. Palladium alloys for biomedical devices. Expert.Rev.Med.Devices 2010;7(4):489-501. PubMed
Garcia-Patos, V., Alomar, A., Lleonart, R., Cistero, A., and Matias-Guiu, X. [Subcutaneous nodules and sensitivity to aluminum in patients undergoing hyposensitivity immunotherapy]. Med.Cutan.Ibero.Lat.Am. 1990;18(2):83-88.
van, Joost T. and Roesyanto-Mahadi, I. D. Combined sensitization to palladium and nickel. Contact Dermatitis 1990;22(4):227-228. PubMed
Baur, X. [New occupational inhaled pollutants]. Pneumologie 1990;44 Suppl 1:397-398.
Tossavainen, A. Estimated risk of lung cancer attributable to occupational exposures in iron and steel foundries. IARC Sci.Publ. 1990;(104):363-367.
Ward, J. J., Thornbury, D. D., Lemons, J. E., and Dunham, W. K. Metal-induced sarcoma. A case report and literature review. Clin.Orthop.Relat Res. 1990;(252):299-306. DOI
Sunderman, F. W., Jr. Carcinogenicity of metal alloys in orthopedic prostheses: clinical and experimental studies. Fundam.Appl.Toxicol. 1989;13(2):205-216. DOI
Adachi, S. and Takemoto, K. [Occupational lung cancer. A comparison between humans and experimental animals]. Sangyo Igaku 1987;29(5):345-357. PubMed
Sunderman, F. W., Jr. A review of the metabolism and toxicology of nickel. Ann.Clin.Lab Sci. 1977;7(5):377-398.
Sky-Peck, H. H. Trace metals and neoplasia. Clin.Physiol Biochem. 1986;4(1):99-111.
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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.

Related: nutrient depletion

Diltiazem Is Linked to Lower Levels of 2 Nutrients

Natural Medicines records Diltiazem as a medicine that can lower these. This is not an interaction with Nickel — 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 Diltiazem 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.

Pharmacist Counseling Corner

Taking Nickel and Diltiazem Together: Common Questions

Is it safe to take Nickel with Diltiazem?

We do not list a known interaction between Nickel and Diltiazem. 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 Nickel and Diltiazem have any of the same side effects?

Yes — our sources link each of them separately to 10 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.

How was the Nickel and Diltiazem combination checked?

Interactions in our licensed database are recorded against drug classes. Diltiazem is filed under 9 classifications, and Nickel has documented interactions with 1 drug class — none of Diltiazem's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.

Does Nickel interact with any other medications?

Yes. Nickel has 1 documented drug interaction in our database — Diltiazem is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

Does Diltiazem interact with any supplements?

Yes. Diltiazem has documented interactions with 260 supplements in our database — Nickel is not one of them. The Diltiazem 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

Nickel monograph Uses, safety profile, and every drug interaction in one place Diltiazem drug information The full plain-English guide to this medication Diltiazem supplement interactions Every supplement checked against Diltiazem, 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 76 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

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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.