Omadacycline (Oral) & Nutrient Depletion
Also searched as Nuzyra. What the clinical evidence reports, what it may mean, and what to discuss with your pharmacist.
Omadacycline (Oral) has been associated with depletion of CALCIUM, IRON, MAGNESIUM and ZINC. This does not mean a deficiency will occur — it means these are worth knowing about and, if you take Omadacycline (Oral) long-term, worth raising with your pharmacist or healthcare provider.
Take more than one medication? Open the checker with Omadacycline (Oral) pre-loaded and add the rest to see overlapping nutrient signals.
Reported nutrient depletions with Omadacycline (Oral)
Each record below is shown as published in our licensed clinical database, with its evidence rating and citations. Expand a section for food sources and talking points.
CALCIUM
Insignificant DepletionTETRACYCLINE ANTIBIOTICS
Tetracyclines form complexes with calcium in the gastrointestinal tract, which could reduce absorption of both the tetracycline and calcium if taken at the same time. Significant effects are unlikely when tetracyclines are taken at least two hours before, or four to six hours after, calcium supplements or calcium-containing foods.
Calcium, which your bones, muscles, and heart all depend on, can latch onto tetracycline-type antibiotics like omadacycline in the gut and reduce how well either one is absorbed. The good news is that this interaction is considered insignificant as long as the two are not taken at the same time. Spacing omadacycline at least two hours before, or four to six hours after, calcium-rich foods or supplements is enough to sidestep the issue for most people. No extra supplementation is needed, but your pharmacist is a great resource if you have questions about timing.
What Calcium does & food sources
Calcium builds and maintains bone and is essential for muscle contraction and nerve signaling.
Common food sources:
- Dairy products (milk, yogurt, cheese)
- Fortified plant milks and juices
- Canned fish with bones (sardines, salmon)
- Leafy greens like kale
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
What to discuss with your clinician
Ask your provider whether bone health monitoring (and vitamin D testing) makes sense with long-term use of an associated medication — a blood calcium level alone does not capture bone calcium status.
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
Supplement considerations
Calcium can interfere with the absorption of several medications (some antibiotics, thyroid medication, iron) — separate the doses and confirm timing with your pharmacist. Total intake from food plus supplements matters more than supplements alone.
Do not start or stop medications or supplements without professional guidance — supplements can interact with prescription medications.
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
Caution: Very high calcium intake has its own risks (kidney stones in susceptible people) — more is not better.
Learn more about this nutrient: Calcium — uses, safety & interactions
References (1)
- Murry JJ, Healy MD. Drug-mineral interactions: a new responsibility for the hospital dietician. J Am Diet Assoc 1991;91:66-73.
IRON
Insignificant DepletionTETRACYCLINE ANTIBIOTICS
Tetracyclines form complexes with iron in the GI tract, reducing absorption of both the tetracycline and iron if taken at the same time. Significant effects on iron levels are unlikely when tetracyclines are taken at least two hours before or after iron supplements or iron-containing foods.
Iron helps your body make red blood cells and carry oxygen to your tissues. Omadacycline belongs to the tetracycline antibiotic family, and like other tetracyclines it can latch onto iron in the gut and temporarily reduce how much of each gets absorbed, but only when they are taken at the same time. Because this is a short-course antibiotic and the timing issue is easy to sidestep, any effect on your iron levels is considered insignificant for most people. No supplement is typically needed, but if you have questions about timing with iron-containing foods or vitamins, your pharmacist is a great resource.
What Iron does & food sources
Iron is the core of hemoglobin, which carries oxygen in red blood cells.
Common food sources:
- Red meat and poultry
- Beans and lentils
- Fortified cereals
- Spinach (plant iron absorbs better with vitamin C)
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
What to discuss with your clinician
Iron status is easy to assess (ferritin, iron studies, blood counts). Ask your provider before supplementing — unexplained low iron always deserves a medical evaluation for the cause, not just replacement.
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
Supplement considerations
Iron supplements commonly cause constipation or stomach upset and interfere with the absorption of several medications (thyroid medication, some antibiotics). Do not take iron "just in case" — excess iron is harmful.
Do not start or stop medications or supplements without professional guidance — supplements can interact with prescription medications.
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
Caution: Never self-treat suspected anemia; the underlying cause matters as much as the iron level.
Learn more about this nutrient: Iron — uses, safety & interactions
References (3)
- Murry JJ, Healy MD. Drug-mineral interactions: a new responsibility for the hospital dietician. J Am Diet Assoc 1991;91:66-73.
- Leyden JJ. Absorption of minocycline hydrochloride and tetracycline hydrochloride. Effect of food, milk, and iron. J Am Acad Dermatol 1985;12(2 Pt 1):308-12. PubMed
- Neuvonen PJ, Pentikainen PJ, Gothoni G. Inhibition of iron absorption by tetracycline [letter]. Br J Clin Pharmacol 1975;2:94-6. PubMed
MAGNESIUM
Insignificant DepletionTETRACYCLINE ANTIBIOTICS
Tetracyclines form complexes with magnesium in the GI tract, which could reduce absorption of both the tetracycline and magnesium. Significant effects on magnesium levels are unlikely when tetracyclines are taken on an empty stomach, 1 hour before or 2 hours after magnesium supplements.
Magnesium helps your muscles contract, keeps your heart rhythm steady, and supports hundreds of chemical reactions throughout the body. Omadacycline, like other tetracycline antibiotics, can physically latch onto magnesium in the gut and form a complex that neither the drug nor the mineral absorbs well. In practice, this interaction is rated insignificant, and since omadacycline is already taken on an empty stomach, meaningful magnesium loss is very unlikely for most people. No action is needed for the typical short course, but if you have any concerns, a quick chat with your pharmacist is always a good idea.
What Magnesium does & food sources
Magnesium is involved in muscle and nerve function, heart rhythm, blood sugar control, and bone health.
Common food sources:
- Nuts and seeds (almonds, pumpkin seeds)
- Whole grains
- Leafy green vegetables
- Beans and legumes
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
What to discuss with your clinician
Ask whether a magnesium level is worth checking if you take an associated medication long-term — particularly with symptoms like muscle cramps, twitching, or palpitations. Blood levels do not always reflect total body stores, which is worth discussing too.
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
Supplement considerations
Magnesium supplements come in many forms and can cause loose stools at higher doses. They can also bind some medications in the gut (certain antibiotics, thyroid medication), so timing matters — check with your pharmacist.
Do not start or stop medications or supplements without professional guidance — supplements can interact with prescription medications.
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
Caution: Magnesium supplementation can be risky in kidney disease, where magnesium can accumulate — always check with a clinician first if your kidney function is reduced.
Learn more about this nutrient: Magnesium — uses, safety & interactions
References (1)
- Murry JJ, Healy MD. Drug-mineral interactions: a new responsibility for the hospital dietician. J Am Diet Assoc 1991;91:66-73.
ZINC
Insignificant DepletionTETRACYCLINE ANTIBIOTICS
Clinical research shows that tetracyclines such as tetracycline, demeclocycline, and minocycline, form complexes with zinc in the gastrointestinal tract, which can reduce absorption of both dietary and supplemental zinc. Doxycycline doesn't seem to cause this interaction. Advise patients to take tetracyclines at least 2 hours before, or 4-6 hours after, zinc supplements. Effects of tetracyclines on dietary zinc absorption aren't likely to be clinically significant except in people with other risk factors for zinc deficiency who take tetracyclines for several months.
Zinc helps your immune system, wound healing, and your sense of taste and smell. Omadacycline belongs to the tetracycline antibiotic family, and some drugs in this group can latch onto zinc in the gut and carry it out of the body before it gets absorbed. That said, the evidence rates this as insignificant for most people, so the average short-course user does not need to worry. If you have other reasons to be low in zinc or are taking this antibiotic for an extended period, it is worth mentioning to your pharmacist.
What Zinc does & food sources
Zinc supports immune function, wound healing, taste and smell, and many enzyme systems.
Common food sources:
- Meat and shellfish (especially oysters)
- Beans and lentils
- Nuts and seeds
- Whole grains
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
What to discuss with your clinician
Ask about zinc status if you take an associated medication long-term and notice slow wound healing, frequent infections, or taste changes — a clinician can decide whether testing or an empiric plan makes sense.
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
Supplement considerations
Zinc competes with copper for absorption — long-term, higher-dose zinc without medical guidance can cause copper deficiency. Zinc also binds some antibiotics in the gut, so dose timing matters.
Do not start or stop medications or supplements without professional guidance — supplements can interact with prescription medications.
HelloPharmacist pharmacist-reviewed education — separate from the licensed record above.
Caution: Keep zinc doses moderate and time them away from interacting medications — ask your pharmacist.
Learn more about this nutrient: Zinc — uses, safety & interactions
References (4)
- Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
- Neuvonen PJ. Interactions with the absorption of tetracyclines. Drugs 1976;11:45-54.. PubMed
- Weismann K. Chelating drugs and zinc. Dan Med Bull 1986;33:208-11.
- Penttila O, Hurme H, Neuvonen PJ. Effect of zinc sulfate on the absorption of tetracycline and doxycycline in man. Eur J Clin Pharmacol 1975;9:131-4.
This tool is educational and is not a substitute for professional medical advice. An association is not a diagnosis and does not mean a deficiency will occur. Always talk to your pharmacist or healthcare provider before starting, stopping, or changing any medication or supplement.
Disclaimer: This checker finds which nutrients might be depleted by prescription or over-the-counter medications. Each nutrient depletion issue is rated based on clinical significance. Use your own professional judgment prior to making clinical decisions.© 2026 Therapeutic Research Center Licensed records refresh weekly · last updated July 3, 2026.
More about Omadacycline (Oral)
What drug-induced nutrient depletion means
Some medications can, over time, lower the levels of certain vitamins, minerals, or other nutrients — through reduced absorption, increased loss, or changes in how the body uses them.
Association is not deficiency
An entry here means a depletion has been reported or studied — not that it happens to everyone, or that you are deficient. Dose, duration, diet, and your own health all matter.
Evidence varies by pair
Some drug–nutrient links (like metformin and vitamin B12) are well studied; others rest on limited or preliminary research. Each entry shows the evidence rating from our licensed clinical database.
When to ask about labs
If you take an associated medication long-term, ask your healthcare provider whether monitoring is appropriate for you. Not everyone needs testing — your provider can weigh your dose, duration, and symptoms.
Don't self-supplement blindly
Supplements are not risk-free: some can interact with medications, and some (like potassium or magnesium) can be risky with kidney disease. Talk to your pharmacist before adding anything.
Never stop a medication over this
These medications are prescribed for good reasons, and the benefit usually far outweighs a manageable nutrient consideration. Any change belongs in a conversation with your prescriber.
Food first, usually
For many nutrients, a varied diet covers the gap. Each entry lists common food sources; a supplement is a decision to make with your pharmacist or provider, not a default.
Omadacycline (Oral) & nutrients: FAQs
Does Omadacycline (Oral) deplete CALCIUM?
Should I take a supplement because I take Omadacycline (Oral)?
Should I stop taking Omadacycline (Oral)?
Where does this information come from?
Questions about Omadacycline (Oral) and your nutrition?
Ask a licensed pharmacist — free, no appointment needed.
Sources & How We Checked
Nutrient depletion records for Omadacycline (Oral) are evidence-graded and sourced from the Natural Medicines database, and are displayed as published with their citations.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference for drug-induced nutrient depletions, supplements, and interactions — the basis for this page.
- MedlinePlus, U.S. National Library of Medicine — NIH consumer drug information, used for medication overviews across the site.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.