Interactions on record — worth a quick check against your medications. Based on 2 of 3 ingredients. Check your meds →
Dietary supplement

Black Seed Oil Ingredients & Drug Interactions

by Health Logics

Liquid Category: Fat/fatty Acid
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

Black Seed Oil is a dietary supplement by Health Logics with 3 active ingredients. Its ingredients are commonly taken for general nutrition and energy, skin conditions like eczema, inflammation support.Based on those ingredients, 912 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are 100% certified organic Black Cumin Oil. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Black Seed Oil by Health Logics

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 3 of its 3 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains 3 active ingredients. Black cumin seed oil (marketed as 100% certified organic black seed) is the primary active, along with omega-6 and omega-9 fatty acids.

The product comes as a liquid with no other inactive ingredients listed.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed

This product doesn't appear to be marketed for a specific use, so we graded its ingredients' overall clinical evidence instead.

Moderate

Some clinical evidence supports its ingredients for:

Why this rating?
  • The label markets general wellness (“general health and wellness support”), not a specific health condition, so there is no single claim to grade against clinical-evidence data.
  • Since the label doesn't commit to one use, we graded the ingredients' overall clinical evidence instead.
  • On file: Acne — rated "Possibly Effective" (Black Seed) (Natural Medicines).
  • On file: Allergic rhinitis (hay fever) — rated "Possibly Effective" (Black Seed) (Natural Medicines).
  • On file: Asthma — rated "Possibly Effective" (Black Seed) (Natural Medicines).
  • On file: Chronic obstructive pulmonary disease (COPD) — rated "Possibly Effective" (Black Seed) (Natural Medicines).
  • On file: Diabetes — rated "Possibly Effective" (Black Seed) (Natural Medicines).

Black seed is rated possibly effective for acne, hay fever, asthma, and diabetes based on available evidence. It's also possibly effective against Helicobacter pylori infection.

Omega-6 fatty acids, on the other hand, are rated possibly ineffective for lowering cholesterol, supporting cardiovascular health, aiding child development, or helping multiple sclerosis — the evidence doesn't support benefit for these uses. The effectiveness of omega-9 fatty acids in this product isn't established in our data.

The evidence, ingredient by ingredient Omega-6 Fatty Acids Black Seed

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Black seed oil is well tolerated in oral and topical use overall. Common side effects include constipation, stomach burning or discomfort, nausea, and vomiting — a small number of trial participants reported gastrointestinal complaints, and one person required hospitalization for severe nausea and vomiting.

One clinical trial also reported relatively severe menstrual bleeding. The safety notes advise that while black seed in food amounts is likely safe, higher supplement doses are less studied long-term.

Regarding pregnancy, black seed supplement doses are rated likely unsafe — the safety data advises against it during pregnancy. For lactation, we don't have safety information on file.

Omega-6 supplements carry uncertain safety; the facts note that dietary omega-6 is fine, but the safety of concentrated supplements isn't well established, and higher intakes (especially relative to omega-3) may carry risks.

Side effects, ingredient by ingredient Omega-6 Fatty Acids Black Seed

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 2 matched ingredients can interact with medications — Black Seed.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications.
  • For scale: 912 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking this product, double-check with your pharmacist if you take serotonergic drugs (antidepressants, some pain medications), blood thinners or antiplatelet drugs (warfarin, aspirin), antihypertensive drugs (blood pressure medications), antidiabetes drugs, CNS depressants (sedatives, opioids), diuretics, immunosuppressants, or cyclosporine. Altogether, these interactions span 912 individual medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

Black seed oil may help with acne, hay fever, asthma, or blood sugar if that's why you're considering it, but it has notable interactions with blood thinners, blood pressure meds, diabetes drugs, sedatives, and serotonergic antidepressants. If you take any of those or immunosuppressants, check with your pharmacist first.

Pregnant people should avoid black seed supplements. A conversation with your pharmacist about your specific medications is the right move before you start.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 2 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Apr 23, 2020.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Black Seed Oil, straight from the product label.

Brand Health Logics
Barcode (UPC) 657520888900
Net contents 6 Fluid Ounce(s); 180 mL
Market status On market
Date entered into DSLD Apr 23, 2020
DSLD ID 217423
Product type Fat/fatty Acid
Supplement form Liquid
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Organic, Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Black Seed Oil by Health Logics, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
5 mL
Maximum serving Sizes:
5 mL
Servings per container
36
UPC/BARCODE
657520888900
IngredientAmount% DV
Calories45 Calorie(s)--
Calories from Fat45 Calorie(s)--
Cholesterol3 mg1%
Total Fat5 Gram(s)8%
Omega-6 Fatty Acids2 Gram(s)--
Omega-9 Fatty Acids0.8 Gram(s)--
Saturated Fat1 Gram(s)5%
100% certified organic Black Cumin Oil5 mL--

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
General Statements

Black Seed Oil has been used to promote health for thousands of years.

In certain cultures, black cumin seed is known as the "seed of blessing."

Formula

Black Seed Oil is rich in polyunsaturated fatty acids, consisting of Linoleic Acid (Omega-6) and Oleic Acid (Omega-9).

100% pure & organic certified black cumin seed oil Essential fatty acids A rich source of Omega 6 & 9

Formulation

Black Seed Oil is made without the use of chemicals, alcohol, solvents or heat and extract fresh by the "cold-pressed" method for maximum nutritional value.

Certified Organic by SCS Global Services

V Vegan

Non GMO GF (Gluten free)

Promotes healthy immune response Promotes digestive and respiratory health

Free of: gluten, soy, shellfish, fish, egg, milk, peanut, & sugar. GMO free

Brand IP Statement(s)

Health Logics Laboratories, Inc.

Seals/Symbols

Certified Organic SCS Global Services

cGMP (certified Good Manufacturing Practice)

USDA Organic

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, take 1 teaspoon daily with meals or as directed by your health practitioner. Great to use as a condiment to salad dressings, marinades, and sauces.

Storage

Store in a cool, dry place with lid tightly closed.

Precautions

Keep out of the reach of children.

Note: Consult your healthcare provider if you are pregnant of lactating, have a serious health condition, or are taking prescription medication.

FDA Disclaimer Statement

These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

See for yourself

Black Seed Oil by Health Logics label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

What’s inside

The Ingredients in Black Seed Oil by Health Logics

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size5 mL Dosage formLiquid Servings per container36 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Omega-6 Fatty Acids

No known
interactions
2 Gram(s) per serving

Omega-6 fatty acids are essential fats your body needs but cannot make on its own, and most people get plenty from everyday foods like vegetable oils,...

Omega-6 Fatty Acids monograph & interactions

Omega-9 Fatty Acids

0.8 Gram(s) per serving

100% certified organic Black Cumin Oil

Interacts with
912 drugs
5 mL per serving

Black seed (Nigella sativa) is a traditional spice and remedy that has been studied for asthma, blood sugar, cholesterol, and blood pressure, with ear...

100% certified organic Black Cumin Oil monograph & interactions
Interaction report

Black Seed Oil by Health Logics Drug Interactions

Want to check YOUR meds against Black Seed Oil?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

Go to the checker
912Drugs
912 Moderate

Ingredients driving the most interactions

Each ingredient & the kinds of drugs it affects

For each ingredient in Black Seed Oil with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

100% certified organic Black Cumin Oil14 drug types · 912 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, black seed may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro and animal research suggests that black seed extract can inhibit platelet aggregation and clotting, and increase bleeding time. In addition, decreased platelet counts have occurred in a human case report and in animal research.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, taking black seed with antidiabetes drugs might increase the risk of hypoglycemia.
Some clinical research and numerous animal studies suggest that black seed, especially its constituent thymoquinone, can have hypoglycemic effects.

Likelihood Possible Evidence B
Antihypertensive Drugs

Theoretically, taking black seed with antihypertensive drugs might increase the risk of hypotension.
Clinical research suggests that black seed powder and oil might reduce blood pressure by 2-3 mmHg. In animal research, black seed modestly reduces blood pressure and concomitant use of black seed and amlodipine (Norvasc) or metoprolol (Lopressor) increased the blood pressure lowering effects of these drugs.

Likelihood Possible Evidence B
Clopidogrel (Plavix)

Theoretically, black seed may increase the risk of bleeding if used with clopidogrel.
Animal research shows that taking black seed extract daily for 2 weeks prior to a single dose of clopidogrel increases maximum concentrations of clopidogrel by approximately 31% and modestly decreases oral clearance. Furthermore, bleeding time was increased by 12%. This has not been shown in humans.

Likelihood Possible Evidence D
Cns Depressants

Theoretically, concomitant use with drugs that have sedative properties may cause additive effects.
Animal research suggests that black seed may have CNS depressant effects.

Likelihood Possible Evidence D
Cyclosporine (Neoral, Sandimmune)

Theoretically taking black seed might reduce the levels and clinical effects of cyclosporine.
In animal research, black seed extract decreased the maximal levels of cyclosporine in the blood by 35.5%. This has not been shown in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, black seed might increase levels of drugs metabolized by CYP2C9.
In vitro research suggests that thymoquinone, a constituent of black seed, can decrease the metabolism of phenytoin by a mechanism possibly related to the inhibition of CYP2C9. The effect of black seed on CYP2C9 is unclear. This has not been shown in humans.

Likelihood Possible Evidence D
Diuretic Drugs

Theoretically, taking black seed with diuretic drugs might increase potassium loss and the risk of hypokalemia.
Black seed extract has shown diuretic effects in animals, which could theoretically increase potassium loss. This has not been shown in humans.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, black seed might interfere with immunosuppressive therapy.
Animal and in vitro studies suggest that black seed might stimulate immune function. However, other animal studies suggest that black seed may suppress immune function.

Likelihood Possible Evidence D
Phenytoin (Dilantin)

Theoretically, black seed might increase or decrease levels and effects of phenytoin.
In vitro research suggests that thymoquinone, a constituent of black seed, can decrease the metabolism of phenytoin. This effect may be due to inhibition of cytochrome P450 2C9 (CYP2C9). However, animal research shows that black seed decreases the maximum concentration of and total systemic exposure to phenytoin by 57% and 87%, respectively. This seems to be related to increased clearance and steady state volume of distribution. This interaction has not been shown in humans.

Likelihood Possible Evidence D
Serotonergic Drugs

Theoretically, combining serotonergic drugs with black seed might increase the risk of serotonergic side effects, including serotonin syndrome and cerebral vasoconstrictive disorders.
Animal research suggests that black seed can increase brain serotonin levels. In one case report, a 35-year-old man undergoing endoscopic surgery experienced immediate postoperative serotonin syndrome that was likely associated with the use of black seed oil 600 mg daily starting 4 days before surgery, and precipitated by the use of serotonergic pain medications, including fentanyl and oxycodone. Monitor patients for signs of serotonin syndrome and other serotonergic side effects if using black seed with serotonergic drugs.

Likelihood Possible Evidence D
Sildenafil (Viagra)

Theoretically, black seed might reduce plasma levels and the therapeutic effects of sildenafil.
Animal research shows that black seed reduces the total systemic exposure to sildenafil by 43%. So far, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, black seed might increase levels of warfarin and increase the risk of bleeding.
In vitro research suggests that thymoquinone, a constituent of black seed, can decrease the metabolism of warfarin. This effect may be due to inhibition of cytochrome P450 2C9 (CYP2C9). The effect of black seed on warfarin metabolism is unclear. This has not been shown in humans.

Likelihood Possible Evidence D
Prednisolone

Theoretically black seed might reduce plasma levels and therapeutic effects of prednisolone.
In animal research, oral administration of a single dose of black seed oil 15 minutes prior to oral prednisolone decreases the prednisolone maximum plasma concentration by 65% and area under the curve by 25%. This has not been shown in humans.

Likelihood Possible Evidence D
The maker

Brand information

Manufacturer and brand details for Black Seed Oil, from the product label.

Health Logics

See all Health Logics products
Name
Health Logics Laboratories, Inc.
City
Irvine
State
CA
ZipCode
92618
Phone Number
1(888)402-1600
Web Address
www.health-logics.com
Pharmacist Counseling Corner

Black Seed Oil by Health Logics: Common Questions

Does Black Seed Oil by Health Logics interact with any medications?
Yes. Based on its ingredients, Black Seed Oil has a known interaction with 912 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Black Seed Oil contains 3 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take black seed oil if I'm pregnant?
No — supplement doses of black seed are rated likely unsafe in pregnancy, so it's best to avoid them. If you're pregnant and interested in this product, talk with your doctor or pharmacist.
What side effects might I notice from black seed oil?
The most common are stomach issues: constipation, burning sensation, nausea, and vomiting. In clinical trials, a small number of people reported gastrointestinal complaints, and in rare cases these side effects were severe enough to need medical attention. One trial also saw one person experience heavier menstrual bleeding.
Does omega-6 in this product actually help lower cholesterol or support heart health?
The evidence doesn't support it — omega-6 is rated possibly ineffective for both cholesterol and cardiovascular disease. Your doctor or pharmacist can suggest alternatives if that's your goal.
What is black seed oil supposed to help with?
Black seed is rated possibly effective for acne, hay fever, asthma, diabetes, and Helicobacter pylori infection. That means there's some evidence, but it's not definitive.
Is this safe to take long-term?
Black seed oil seems well tolerated, but higher supplement doses haven't been studied much over the long haul, so we don't have strong safety data for extended use. Check in with your pharmacist about your personal situation.
What about the omega-9 fatty acids in this — do they do anything?
We don't have effectiveness data on file for omega-9 in supplement form, so I can't tell you what it's meant to do here.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Black Seed Oil is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Black Seed Oil label
Sources

Sources & How We Checked

Black Seed Oil's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 80 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Omega-6 Fatty Acids 20 references
  1. Godley PA. Essential fatty acid consumption and risk of breast cancer. Breast Cancer Res Treat 1995;35:91-5. PubMed
  2. Newcomer LM, King IB, Wicklund KG, Stanford JL. The association of fatty acids with prostate cancer risk. Prostate 2001;47:262-8. DOI
  3. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Energy, Carbohydrate. Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. Washington, DC: National Academy Press, 2005. Available at: http://www.nap.edu/books/03 DOI
  4. Colter, A. L., Cutler, C., and Meckling, K. A. Fatty acid status and behavioural symptoms of attention deficit hyperactivity disorder in adolescents: a case-control study. Nutr J 2008;7:8. PubMed
  5. Yamada, T., Strong, J. P., Ishii, T., Ueno, T., Koyama, M., Wagayama, H., Shimizu, A., Sakai, T., Malcom, G. T., and Guzman, M. A. Atherosclerosis and omega-3 fatty acids in the populations of a fishing village and a farming village in Japan. Atheroscler
  6. Conklin, S. M., Manuck, S. B., Yao, J. K., Flory, J. D., Hibbeln, J. R., and Muldoon, M. F. High omega-6 and low omega-3 fatty acids are associated with depressive symptoms and neuroticism. Psychosom.Med. 2007;69(9):932-934.
  7. Richardson, A. J., Cyhlarova, E., and Ross, M. A. Omega-3 and omega-6 fatty acid concentrations in red blood cell membranes relate to schizotypal traits in healthy adults. Prostaglandins Leukot.Essent.Fatty Acids 2003;69(6):461-466. PubMed
  8. Assies, J., Lok, A., Bockting, C. L., Weverling, G. J., Lieverse, R., Visser, I., Abeling, N. G., Duran, M., and Schene, A. H. Fatty acids and homocysteine levels in patients with recurrent depression: an explorative pilot study. Prostaglandins Leukot.Es PubMed
  9. Chiplonkar, S. A., Agte, V. V., Tarwadi, K. V., Paknikar, K. M., and Diwate, U. P. Micronutrient deficiencies as predisposing factors for hypertension in lacto-vegetarian Indian adults. J Am Coll.Nutr 2004;23(3):239-247. PubMed
  10. Mamalakis, G., Kiriakakis, M., Tsibinos, G., Hatzis, C., Flouri, S., Mantzoros, C., and Kafatos, A. Depression and serum adiponectin and adipose omega-3 and omega-6 fatty acids in adolescents. Pharmacol.Biochem.Behav. 2006;85(2):474-479. PubMed
  11. Okuyama, H., Ichikawa, Y., Sun, Y., Hamazaki, T., and Lands, W. E. Cancers common in the USA are stimulated by omega 6 fatty acids and large amounts of animal fats, but suppressed by omega 3 fatty acids and cholesterol. World Rev Nutr Diet. 2007;96:143-1
  12. Martinez-Ramirez, M. J., Palma, S., Martinez-Gonzalez, M. A., Delgado-Martinez, A. D., de la Fuente, C., and Delgado-Rodriguez, M. Dietary fat intake and the risk of osteoporotic fractures in the elderly. Eur.J Clin Nutr 2007;61(9):1114-1120. PubMed
  13. Sonestedt, E., Gullberg, B., and Wirfalt, E. Both food habit change in the past and obesity status may influence the association between dietary factors and postmenopausal breast cancer. Public Health Nutr 2007;10(8):769-779. PubMed
  14. Simopoulos, A. P. The omega-6/omega-3 fatty acid ratio, genetic variation, and cardiovascular disease. Asia Pac.J Clin Nutr 2008;17 Suppl 1:131-134.
  15. Harris, W. S., Mozaffarian, D., Rimm, E., Kris-Etherton, P., Rudel, L. L., Appel, L. J., Engler, M. M., Engler, M. B., and Sacks, F. Omega-6 fatty acids and risk for cardiovascular disease: a science advisory from the American Heart Association Nutrition DOI
  16. Godley, P. A., Campbell, M. K., Gallagher, P., Martinson, F. E., Mohler, J. L., and Sandler, R. S. Biomarkers of essential fatty acid consumption and risk of prostatic carcinoma. Cancer Epidemiol.Biomarkers Prev. 1996;5(11):889-895.
  17. Lee E, Kim H, Kim H, Ha EH, Chang N. Association of maternal omega-6 fatty acid intake with infant birth outcomes: Korean Mothers and Children's Environmental Health (MOCEH). Nutr J 2018;17(1):47. PubMed
  18. Pawelczyk T, Trafalska E, Pawelczyk A, Kotlicka-Antczak M. Differences in omega-3 and omega-6 polyunsaturated fatty acid consumption in people at ultra-high risk of psychosis, first-episode schizophrenia, and in healthy controls. Early Interv Psychiatry 2
  19. Gardner KG, Gebretsadik T, Hartman TJ, et al. Prenatal omega-3 and omega-6 polyunsaturated fatty acids and childhood atopic dermatitis. J Allergy Clin Immunol Pract. 2020;8(3):937-944. PubMed
  20. Luo J, Ge H, Sun J, Hao K, Yao W, Zhang D. Associations of dietary ?-3, ?-6 fatty acids consumption with sleep disorders and sleep duration among adults. Nutrients 2021;13(5):1475. PubMed

See these in context on the Omega-6 Fatty Acids monograph →

Black Seed 60 references
  1. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  2. Aqel M, Shaheen R. Effects of the volatile oil of black seed seeds on the uterine smooth muscle of rat and guinea pig. J Ethnopharmacol 1996;52:23-6.
  3. Keshri G, Singh MM, Lakshmi V, Kamboj VP. Post-coital contraceptive efficacy of the seeds of Black seed in rats. Indian J Physiol Pharmacol 1995;39:59-62.
  4. Tennekoon KH, Jeevathayaparan S, Kurukulasooriya AP, Karunanayake EH. Possible hepatotoxicity of Nigella sativa seeds and Dregea volubilis leaves. J Ethnopharmacol 1991;31:283-9. PubMed
  5. Dehkordi FR, Kamkhah AF. Antihypertensive effect of Nigella sativa seed extract in patients with mild hypertension. Fundam Clin Pharmacol 2008;22:447-52.
  6. Zaoui, A., Cherrah, Y., Lacaille-Dubois, M. A., Settaf, A., Amarouch, H., and Hassar, M. [Diuretic and hypotensive effects of Nigella sativa in the spontaneously hypertensive rat]. Therapie 2000;55(3):379-382.
  7. Enomoto, S., Asano, R., Iwahori, Y., Narui, T., Okada, Y., Singab, A. N., and Okuyama, T. Hematological studies on black cumin oil from the seeds of Nigella sativa L. Biol.Pharm.Bull 2001;24(3):307-310. PubMed
  8. Meral, I., Yener, Z., Kahraman, T., and Mert, N. Effect of Nigella sativa on glucose concentration, lipid peroxidation, anti-oxidant defence system and liver damage in experimentally-induced diabetic rabbits. J Vet.Med A Physiol Pathol.Clin Med 2001;48(1
  9. Al Jishi, S. A. and Abuo, Hozaifa B. Effect of Nigella sativa on blood hemostatic function in rats. J Ethnopharmacol. 2003;85(1):7-14. PubMed
  10. Ali, B. H. and Blunden, G. Pharmacological and toxicological properties of Nigella sativa. Phytother.Res. 2003;17(4):299-305.
  11. Al Naggar, T. B., Gomez-Serranillos, M. P., Carretero, M. E., and Villar, A. M. Neuropharmacological activity of Nigella sativa L. extracts. J Ethnopharmacol. 2003;88(1):63-68. PubMed
  12. Kalus, U., Pruss, A., Bystron, J., Jurecka, M., Smekalova, A., Lichius, J. J., and Kiesewetter, H. Effect of Nigella sativa (black seed) on subjective feeling in patients with allergic diseases. Phytother.Res. 2003;17(10):1209-1214.
  13. Islam, S. N., Begum, P., Ahsan, T., Huque, S., and Ahsan, M. Immunosuppressive and cytotoxic properties of Nigella sativa. Phytother.Res. 2004;18(5):395-398.
  14. Fararh, K. M., Atoji, Y., Shimizu, Y., Shiina, T., Nikami, H., and Takewaki, T. Mechanisms of the hypoglycaemic and immunopotentiating effects of Nigella sativa L. oil in streptozotocin-induced diabetic hamsters. Res Vet.Sci 2004;77(2):123-129. PubMed
  15. Awad, E. M. and Binder, B. R. In vitro induction of endothelial cell fibrinolytic alterations by Nigella sativa. Phytomedicine 2005;12(3):194-202. PubMed
  16. El Obeid, A., Al Harbi, S., Al Jomah, N., and Hassib, A. Herbal melanin modulates tumor necrosis factor alpha (TNF-alpha), interleukin 6 (IL-6) and vascular endothelial growth factor (VEGF) production. Phytomedicine. 2006;13(5):324-333.
  17. Abbas, A. T., Abdel-Aziz, M. M., Zalata, K. R., and Tel, Abd Al-Galel. Effect of dexamethasone and Nigella sativa on peripheral blood eosinophil count, IgG1 and IgG2a, cytokine profiles and lung inflammation in murine model of allergic asthma. Egypt J Im
  18. Kaleem, M., Kirmani, D., Asif, M., Ahmed, Q., and Bano, B. Biochemical effects of Nigella sativa L seeds in diabetic rats. Indian J Exp.Biol. 2006;44(9):745-748.
  19. Hawsawi, Z. A., Ali, B. A., and Bamosa, A. O. Effect of Nigella sativa (Black Seed) and thymoquinone on blood glucose in albino rats. Ann.Saudi Med 2001;21(3-4):242-244.
  20. Massadeh, A. M., Al Safi, S. A., Momani, I. F., Al Mahmoud, M., and Alkofahi, A. S. Analysis of cadmium and lead in mice organs: effect of Nigella sativa L. (Black Cumin) on the distribution and immunosuppressive effect of cadmium-lead mixture in mice. B PubMed
  21. Akhondian, J., Parsa, A., and Rakhshande, H. The effect of Nigella sativa L. (black cumin seed) on intractable pediatric seizures. Med Sci Monit. 2007;13(12):CR555-CR559.
  22. Meddah, B., Ducroc, R., El Abbes, Faouzi M., Eto, B., Mahraoui, L., Benhaddou-Andaloussi, A., Martineau, L. C., Cherrah, Y., and Haddad, P. S. Nigella sativa inhibits intestinal glucose absorption and improves glucose tolerance in rats. J Ethnopharmacol. PubMed
  23. Najmi, A., Nasiruddin, M., Khan, R. A., and Haque, S. F. Effect of Nigella sativa oil on various clinical and biochemical parameters of insulin resistance syndrome. Int J Diabetes Dev.Ctries. 2008;28(1):11-14.
  24. al Sheikh, O. A. and Gad el-Rab, M. O. Allergic contact dermatitis: clinical features and profile of sensitizing allergens in Riyadh, Saudi Arabia. Int J Dermatol. 1996;35(7):493-497.
  25. Steinmann, A., Schatzle, M., Agathos, M., and Breit, R. Allergic contact dermatitis from black cumin (Nigella sativa) oil after topical use. Contact Dermatitis 1997;36(5):268-269.
  26. Al-Jenoobi FI, Al-Suwayeh SA, Muzaffar I, et al. Effects of Nigella sativa and Lepidium sativum on cyclosporine pharmacokinetics. Biomed Res Int 2013;2013:953520.
  27. Arslan E, Sayin S, Demirbas S, et al. A case study report of acute renal failure associated with Nigella sativa in a diabetic patient. J Integr Med 2013;11:64-6. PubMed
  28. Bamosa AO, Kaatabi H, Lebdaa FM, et al. Effect of Nigella sativa seeds on the glycemic control of patients with type 2 diabetes mellitus. Indian J Physiol Pharmacol 2010;54:344-54.
  29. Bonhomme A, Poreaux C, Jouen F, et al. Bullous drug eruption to Nigella sativa oil: Consideration of the use of a herbal medicine - clinical report and review of the literature. J Eur Acad Dermatol Venereol 2017;31:e217-e219.
  30. Farhangi MA, Dehghan P, Tajmiri S, Abbasi MM. The effects of Nigella sativa on thyroid function, serum Vascular Endothelial Growth Factor (VEGF) - 1, Nesfatin-1 and anthropometric features in patients with Hashimoto's thyroiditis: a randomized controlled
  31. Kaatabi H, Bamosa AO, Badar A, et al. Nigella sativa improves glycemic control and ameliorates oxidative stress in patients with type 2 diabetes mellitus: placebo controlled participant blinded clinical trial. PLoS One 2015;10:e0113486. PubMed
  32. Mohtashami R, Huseini HF, Heydari M, et al. Efficacy and safety of honey based formulation of Nigella sativa seed oil in functional dyspepsia: A double blind randomized controlled clinical trial. J Ethnopharmacol 2015;175:147-52. PubMed
  33. Perveen T, Haider S, Zuberi NA, et al. Increased 5-HT levels following repeated administration of Nigella sativa L. (Black Seed) oil produce antidepressant effects in rats. Sci Pharm 2013;82:161-70. PubMed
  34. Sahebkar A, Soranna D, Liu X, et al. A systematic review and meta-analysis of randomized controlled trials investigating the effects of supplementation with Nigella sativa (black seed) on blood pressure. J Hypertens 2016;34:2127-35. PubMed
  35. Shawki M, El Wakeel L, Shatla R, et al. The clinical outcome of adjuvant therapy with black seed oil on intractable paediatric seizures: a pilot study. Epileptic Disord 2013;15:295-301. PubMed
  36. Muneera KE, Majeed A, Naveed AK. Comparative evaluation of nigella sativa (Kalonji) and simvastatin for the treatment of hyperlipidemia and in the induction of hepatotoxicity. Pak J Pharm Sci. 2015 Mar;28(2):493-8.
  37. Mahdavi R, Namazi N, Alizadeh M, Farajnia S. Effects of Nigella sativa oil with a low-calorie diet on cardiometabolic risk factors in obese women: a randomized controlled clinical trial. Food Funct. 2015;6(6):2041-8. PubMed
  38. Fallah Huseini H, Amini M, Mohtashami R, et al. Blood pressure lowering effect of Nigella sativa L. seed oil in healthy volunteers: a randomized, double-blind, placebo-controlled clinical trial. Phytother Res. 2013;27(12):1849-53.
  39. Dehavay F, Kolivras A, Scheers C. Local and systemic adverse skin reactions following the use of herbal products believed to contain Nigella sativa seeds and oil. Contact Dermatitis. 2019 Mar;80(3):176-177.
  40. Kooshki A, Tofighiyan T, Rastgoo N, Rakhshani MH, Miri M. Effect of Nigella sativa oil supplement on risk factors for cardiovascular diseases in patients with type 2 diabetes mellitus. Phytother Res. 2020.
  41. Warner ME, Warner PA, Sprung J, Warner MA. Black seed oil and perioperative serotonin syndrome: A case report. A A Pract. 2019;13(11):420-422. PubMed
  42. Alam MA, Bin Jardan YA, Raish M, Al-Mohizea AM, Ahad A, Al-Jenoobi FBI. Effect of Nigella sativa and fenugreek on the pharmacokinetics and pharmacodynamics of amlodipine in hypertensive rats. Curr Drug Metab. 2020;21(4):318-325. PubMed
  43. Moustafa HAM, El Wakeel LM, Halawa MR, Sabri NA, El-Bahy AZ, Singab AN. Effect of Nigella sativa oil versus metformin on glycemic control and biochemical parameters of newly diagnosed type 2 diabetes mellitus patients. Endocrine 2019;65(2):286-94. PubMed
  44. Safi S, Razmpoosh E, Fallahzadeh H, et al. The effect of Nigella sativa on appetite, anthropometric and body composition indices among overweight and obese women: A crossover, double-blind, placebo-controlled, randomized clinical trial. Complement Ther Me PubMed
  45. Wang X, Jiang A, Batra V. Severe thrombocytopenia associated with black seed oil and evening primrose oil. Cureus. 2020;12(6):e8390. PubMed
  46. Alkharfy K, Jan B, Alotaibi K, et al. Clopidogrel-herb Interactions: A Pharmacokinetic and Pharmacodynamic Assessment in a Rat Model. Curr Drug Metab 2021;22(12):969-977. PubMed
  47. Bin Jardan YA, Ahad A, Raish M, Alam MA, Al-Mohizea AM, Al-Jenoobi FI. Effects of garden cress, fenugreek and black seed on the pharmacodynamics of metoprolol: an herb-drug interaction study in rats with hypertension. Pharm Biol 2021;59(1):1088-1097. PubMed
  48. Thomas JV, Mohan ME, Prabhakaran P, Das S S, Maliakel B, I M K. A phase I clinical trial to evaluate the safety of thymoquinone-rich black cumin oil (BlaQmax®) on healthy subjects: Randomized, double-blinded, placebo-controlled prospective study. Toxicol PubMed
  49. Assier H, Kouby F, Ingen-Housz-Oro S, Roux C. Severe allergic contact connubial dermatitis to Nigella Sativa Seed Oil due to repeated contacts to beard cosmetics. Contact Dermatitis 2022. PubMed
  50. Koshak AE, Koshak EA, Mobeireek AF, et al. Nigella sativa for the treatment of COVID-19: An open-label randomized controlled clinical trial. Complement Ther Med 2021;61:102769. PubMed
  51. Hadi S, Daryabeygi-Khotbehsara R, Mirmiran P, et al. Effect of Nigella sativa oil extract on cardiometabolic risk factors in type 2 diabetes: A randomized, double-blind, placebo-controlled clinical trial. Phytother Res 2021;35(7):3747-3755.
  52. Ali SM, Chen P, Sheikh S, et al. Thymoquinone with metformin decreases fasting, post prandial glucose, and HbA1c in type 2 diabetic patients. Drug Res (Stuttg) 2021;71(6):302-306. PubMed
  53. Tavakoli-Rouzbehani OM, Abbasnezhad M, Kheirouri S, Alizadeh M. Effects of Nigella sativa oil supplementation on selected metabolic parameters and anthropometric indices in patients with coronary artery disease: A randomized, double-blind, placebo-control
  54. Fargeas M, Calugareanu A, Ben-Said B. Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome after topical use of Nigella sativa (black cumin) oil. Contact Dermatitis 2022;87(2):203-204.
  55. Wang Z, Wang Z, Wang X, et al. Potential food-drug interaction risk of thymoquinone with warfarin. Chem Biol Interact. 2022;365:110070. PubMed
  56. Wang Z, Wang X, Wang Z, et al. Potential herb-drug interaction risk of thymoquinone and phenytoin. Chem Biol Interact. 2022;353:109801. PubMed
  57. Al-Mohizea AM, Ahad A, El-Maghraby GM, et al. Effects of Nigella sativa, Lepidium sativum and Trigonella foenum-graecum on sildenafil disposition in beagle dogs. Eur J Drug Metab Pharmacokinet. 2015;40(2):219-24. PubMed
  58. Alkharfy KM, Al-Jenoobi FI, Al-Mohizea AM, et al. Effects of Lepidium sativum, Nigella sativa and Trigonella foenum-graceum on phenytoin pharmacokinetics in beagle dogs. Phytother Res. 2013;27(12):1800-4.
  59. Abutaima R, Al-Ebini Y, Alkofahi A, et al. In vivo assessment of black seed oil single dose on prednisolone pharmacokinetics. J Pharm Pharmacol 2024;76(1):57-63.
  60. Sener K, Cakir A, Yesiloglu O, Altug E, Guven R, Korkut S. Rhabdomyolysis and acute kidney injury after consumption of black seed oil. Toxicon 2024;245:107787. PubMed

See these in context on the Black Seed monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring