Drug & supplement interaction

Germanium + Insulin (rDNA)

Insulin (rDNA) brand names: Humalog, Humalog Mix 75/25, Humulin R, Humulin N, Humulin L, and others.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Germanium and Insulin (rDNA) 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 Insulin (rDNA) 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

Germanium and Insulin (rDNA)

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 Insulin (rDNA) and Germanium 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 Germanium at all — not against Insulin (rDNA), 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.

Germanium safety at a glance

Germanium overall Avoid Germanium supplements have caused serious kidney damage and deaths and should be avoided.
Pregnancy Likely Unsafe When used orally due to reported toxicity; avoid using. Read the full pregnancy detail
Breastfeeding Likely Unsafe When used orally due to reported toxicity; avoid using. 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 Insulin (rDNA) and Germanium? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Germanium and Insulin (rDNA) 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.

  • Numbness or tingling Additional detail

    Germanium

    “Orally, germanium is well tolerated in amounts typically found in the diet, 0.4-3.4 mg daily. However, there have been more than 30 reports of renal tubular cell damage with renal failure, hepatic steatosis, lactic acidosis, myopathy, peripheral neuropathy, cerebellar ataxia, and degeneration of the dorsal column of the spinal cord, in some cases leading to death, when organic or inorganic germanium compounds are tak…”

    Germanium · Natural Medicines adverse-effect record, reported in alcohol-related liver disease.

    6 sources cited
    1. 557. Tao SH, Bolger, PM. Hazard assessment of germanium supplements. Regul Toxicol Pharmacol 1997;25:211-9.
    2. 51753. Schauss, A. G. Nephrotoxicity in humans by the ultratrace element germanium. Ren Fail. 1991;13(1):1-4. PubMed
    3. 10040. Higuchi I, Izumo S, Kuriyama M, et al. Germanium myopathy: clinical and experimental pathological studies. Acta Neuropathol (Berl) 1989;79:300-4.. PubMed
    4. 10041. Matsusaka T, Fujii M, Nakano T, et al. Germanium-induced nephropathy: report of two cases and review of the literature. Clin Nephrol 1988;30:341-5..
    5. 10042. Hess B, Raisin J, Zimmermann A, et al. Tubulointerstitial nephropathy persisting 20 months after discontinuation of chronic intake of germanium lactate citrate. Am J Kidney Dis 1993;21:548-52.. PubMed
    6. 10043. Luck BE, Mann H, Melzer H, et al. Renal and other organ failure caused by germanium intoxication. Nephrol Dial Transplant 1999;14:2464-8. PubMed

    “Orally, germanium has caused peripheral neuropathy. Intravenously, transient lethargy, dizziness, visual blurring, and ataxia were the main adverse effects to the organic compound, spirogermanium. Less common adverse effects were persistent loss of taste and weakness, and a seizure. At doses above 250 mg/m2 daily tremors and mental confusion are more severe.”

    Germanium · Natural Medicines adverse-effect record, reported in epilepsy.

    4 sources cited
    1. 557. Tao SH, Bolger, PM. Hazard assessment of germanium supplements. Regul Toxicol Pharmacol 1997;25:211-9.
    2. 10038. Vogelzang NJ, Gesme DH, Kennedy BJ. A phase II study of spirogermanium in advanced human malignancy. Am J Clin Oncol 1985;8:341-4.. PubMed
    3. 10049. Schein PS, Slavik M, Smythe T, et al. Phase I clinical trial of spirogermanium. Cancer Treat Rep 1980;64:1051-6..
    4. 51770. Woolley, P. V., Ahlgren, J. D., Byrne, P. J., Priego, V. M., and Schein, P. S. A Phase I trial of spirogermanium administered on a continuous infusion schedule. Invest New Drugs 1984;2(3):305-309. PubMed

    Insulin (rDNA)

    Listed in the ADVERSE REACTIONS section of the FDA label for Insulin (rDNA). Read the label on DailyMed ›

  • A skin rash Additional detail

    Germanium

    “Orally, one case of skin rash has been reported for a 38-year-old woman who had taken 600 mg of a germanium preparation as an elixir daily for 18 months. The preparation was found to be mainly germanium dioxide with some organic compound present.”

    Germanium · Natural Medicines adverse-effect record, reported in myasthenia gravis.

    1 source cited
    1. 51762. Nagata, N., Yoneyama, T., Yanagida, K., Ushio, K., Yanagihara, S., Matsubara, O., and Eishi, Y. Accumulation of germanium in the tissues of a long-term user of germanium preparation died of acute renal failure. J.Toxicol.Sci. 1985;10(4):333-341. PubMed

    Insulin (rDNA)

    Listed in the ADVERSE REACTIONS section of the FDA label for Insulin (rDNA). Read the label on DailyMed ›

Reported for Germanium but not commonly for Insulin (rDNA): liver problems, confusion, muscle weakness and a change in taste.

Effects for Insulin (rDNA) come from the ADVERSE REACTIONS section of its FDA label; effects for Germanium 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

Germanium in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Unsafe

When used orally due to reported toxicity; 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 Insulin (rDNA) Products Have a Food Rule — Germanium Should Not Break It

At least one FDA label for a product containing Insulin (rDNA) says to take it with food. If you take Germanium on an empty stomach out of habit, keep them separate — and take Insulin (rDNA) with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Insulin (rDNA) 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.

( 2.1 , 2.2 , 2.3 , 2.4 ) Subcutaneous injection ( 2.2 ): Administer HUMALOG ® U-100 or U-200 by subcutaneous injection into the abdominal wall, thigh, upper arm, or buttocks within 15 minutes before a meal or immediately after a meal.

From the Dosage and Administration section of the FDA label we read for Insulin (rDNA) — 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.

Everything else you take

See Every Supplement That Interacts With Insulin (rDNA)

This page covers Germanium only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Insulin (rDNA) page lists 242 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Chelation Therapy Products (major), Siberian Cocklebur (major), Acai (moderate), African Wild Potato (moderate) and Agaricus Mushroom (moderate).

By severity: 2 major · 211 moderate · 29 minor.

From our pharmacist’s overview on the Insulin (rDNA) page

“A weed called Siberian cocklebur has caused severe low blood sugar in humans and is the one ingredient to avoid outright while using insulin (rDNA) products like Humalog or Humulin. This list deserves real respect.”

Reviewed by 2 · Jul 18, 2026

Open the Insulin (rDNA) interaction page

One more smart check

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

We hold 41 real supplement products containing Germanium, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Germanium. Even though Germanium itself has no known interaction with Insulin (rDNA), 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 Germanium and Insulin (rDNA) 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 Germanium
Steady interest

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

29 days ago today
Medication Insulin (rDNA)
Top half

#1,226 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 Germanium reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Germanium and Insulin (rDNA) 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 .
Supplement

About Germanium

What is Germanium?

  • Immune support
  • Cancer (unproven, alternative therapy)
  • Antioxidant claims
  • Pain relief
  • General wellness/anti-aging

Germanium is a chemical element sometimes sold as a dietary supplement, but there is no reliable evidence it treats any disease. More importantly, germanium supplements have been linked to serious and sometimes fatal kidney damage, so health authorities have warned against their use. We do not recommend taking germanium supplements.

Not a plant; germanium is a chemical element (mineral) · Capsules, tablets, powders (often as germanium-132 / organic germanium or inorganic germanium salts)

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

Germanium: dosing

There is no safe or established dose of germanium as a dietary supplement, and we do not recommend taking it at all.

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

Read the full Germanium monograph & all interactions
Medication

About Insulin Lispro Injection

What Is Insulin Lispro Injection Used For?

Brand names: Humalog, Humalog Mix 75/25, Humulin R, Humulin N, Humulin L, Humulin 50/50, Humulin 70/30, Humulin U, NovoLog, Velosulin, Novolog Mix 70/30, Actrapid, Humulin S, Insuman Rapid

Insulin lispro injection is used to improve glycemic control (blood sugar management) in people with diabetes mellitus. It is a rapid-acting insulin analog approved for use in both type 1 and type 2 diabetes.

Admelog is specifically indicated to improve glycemic control in patients with diabetes mellitus. Humalog Mix75/25 is indicated to improve glycemic control in adults with diabetes mellitus; it is a fixed-ratio mixture of insulin lispro and insulin lispro protamine, and its fixed proportions do not allow for separate adjustment of basal (background) and prandial (mealtime) doses.

See full Insulin Lispro Injection drug information
Keep checking

Other Drugs & Germanium

Browse every other medication we’ve checked against Germanium — 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

Germanium References

The 30 references that drive our Germanium 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. Tao SH, Bolger, PM. Hazard assessment of germanium supplements. Regul Toxicol Pharmacol 1997;25:211-9.
  2. Budman DR, Schulman P, Vinciguerra V, Degnan TJ. Phase I trial of spirogermanium given by infusion in a multiple-dose schedule. Cancer Treat Rep 1982;66:173-5..
  3. Mainwaring MG, Poor C, Zander DS, Harman E. Complete remission of pulmonary spindle cell carcinoma after treatment with oral germanium sesquioxide. Chest 2000;117:591-3.. PubMed
  4. Vogelzang NJ, Gesme DH, Kennedy BJ. A phase II study of spirogermanium in advanced human malignancy. Am J Clin Oncol 1985;8:341-4.. PubMed
  5. Ettinger DS, Finkelstein DM, Donehower RC, et al. Phase II study of N-methylformamide, spirogermanium, and 4-demethoxydaunorubicin in the treatment of non-small cell lung cancer (EST 3583): an Eastern Cooperative Oncology Group study. Med Pediatr Oncol 1 PubMed
  6. Higuchi I, Izumo S, Kuriyama M, et al. Germanium myopathy: clinical and experimental pathological studies. Acta Neuropathol (Berl) 1989;79:300-4.. PubMed
  7. Matsusaka T, Fujii M, Nakano T, et al. Germanium-induced nephropathy: report of two cases and review of the literature. Clin Nephrol 1988;30:341-5..
  8. Hess B, Raisin J, Zimmermann A, et al. Tubulointerstitial nephropathy persisting 20 months after discontinuation of chronic intake of germanium lactate citrate. Am J Kidney Dis 1993;21:548-52.. PubMed
  9. Luck BE, Mann H, Melzer H, et al. Renal and other organ failure caused by germanium intoxication. Nephrol Dial Transplant 1999;14:2464-8. PubMed
  10. Schauss AG. Nephrotoxicity and neurotoxicity in humans from organogermanium compounds and germanium dioxide. Biol Trace Elem Res 1991;29:267-80.. PubMed
  11. Schein PS, Slavik M, Smythe T, et al. Phase I clinical trial of spirogermanium. Cancer Treat Rep 1980;64:1051-6..
  12. Trope C, Mattsson W, Gynning I, et al. Phase II study of spirogermanium in advanced ovarian malignancy. Cancer Treat Rep 1981;65:119-20..
  13. Gerber GB, Leonard A. Mutagenicity, carcinogenicity and teratogenicity of germanium compounds. Mutat Res 1997;387:141-6.. PubMed
  14. Asaka T, Nitta E, Makifuchi T, et al. Germanium intoxication with sensory ataxia. J Neurol Sci 1995;130:220-3.. PubMed
  15. Sanai T, Okuda S, Onoyama K, et al. Germanium dioxide-induced nephropathy: a new type of renal disease. Nephron. 1990;54:53-60.. 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 Germanium and Insulin (rDNA) Together: Common Questions

Is it safe to take Germanium with Insulin (rDNA)?
We do not list a known interaction between Germanium and Insulin (rDNA). 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 Germanium and Insulin (rDNA) have any of the same side effects?
Yes — our sources link each of them separately to 2 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 Germanium and Insulin (rDNA) at the same time of day?
At least one FDA label for a product containing Insulin (rDNA) says to take it with food. If you take Germanium on an empty stomach out of habit, keep them separate and take Insulin (rDNA) with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Insulin (rDNA) products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Does Insulin (rDNA) interact with any supplements?
Yes. Insulin (rDNA) has documented interactions with 242 supplements in our database — Germanium is not one of them. The Insulin (rDNA) 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 Insulin (rDNA) and Germanium?

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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.