Blue-green Algae + Quetiapine
Quetiapine brand names: Seroquel, Dopaquel.
We found no known interaction between Blue-green Algae and Quetiapine 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 Quetiapine 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.
Blue-green Algae and Quetiapine
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 Quetiapine and Blue-green Algae 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.
Blue-green Algae safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Why No Interaction Is Listed for Quetiapine
Interactions in our licensed database are recorded against drug classes, not just single drug names. Quetiapine is filed under 10 classifications — including antipsychotic drugs, qt interval-prolonging drugs, serotonergic drugs. Blue-green Algae has documented interactions with 3 drug classes — the most serious being anticoagulant/antiplatelet drugs (moderate), antidiabetes drugs (moderate) and immunosuppressants (moderate) — and none of Quetiapine’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.
Blue-green Algae Does Interact With Other Medications
Blue-green Algae has 327 moderate known drug interactions in our database — Quetiapine isn’t one of them. If you take anything else, check it against the full list below.
Check Another of Your Medications Against Blue-green Algae
We haven’t checked that one against Blue-green Algae yet — ask our pharmacists directly.
Covers the 2,830 medications we’ve checked against Blue-green Algae. Pick one to open its full report.
Some Quetiapine Products Have a Food Rule — Blue-green Algae Should Not Break It
At least one FDA label for a product containing Quetiapine says to take it on an empty stomach. Most supplements — Blue-green Algae included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Quetiapine on its own and move Blue-green Algae to a meal later in the day.
This may not be true of your version. Food instructions belong to the product, not the ingredient: two Quetiapine 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.
It is recommended that SEROQUEL XR be taken without food or with a light meal (approximately 300 calories) [see Clinical Pharmacology (12.3) ].
From the Dosage and Administration section of the FDA label we read for Quetiapine — 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.
What Quetiapine Is Prescribed For, and What Blue-green Algae Has Been Studied For
These two come up together because they touch the same health topic — not because they do the same job. Quetiapine is a prescription medicine with approved uses on its FDA label. Blue-green Algae is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.
Quetiapine is prescribed for: Quetiapine treats schizophrenia and bipolar disorder in adults and certain age groups of children and adolescents. For bipolar disorder, it is approved for manic episodes (both as a stand-alone treatment and alongside lithium or divalproex) and for depressive episodes. The extended-release form of quetiapine is also approved as add-on therapy for major depressive disorder (MDD) in adults who are already taking an antidepressant. The regular tablet form is not approved for this use.
Blue-green Algae has been studied for:
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Depression studied, not established Blue-green Algae has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows
Blue-green Algae for depression
Although there has been interest in using oral blue-green algae for depression, there is insufficient reliable information about the clinical effects of blue-green algae for this condition.
Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Quetiapine on your own; if you are taking Blue-green Algae for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.
Questions About Blue-green Algae or Quetiapine
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Blue-green Algae or Quetiapine, 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:
- Can You Split Seroquel Tablets? ›
- Accidentally Took Two Seroquel During The Day Instead Of One ›
- Seroquel - Mirapex Interaction Details ›
Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.
See Every Supplement That Interacts With Quetiapine
This page covers Blue-green Algae only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Quetiapine page lists 199 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), American Hellebore (major), Arsenic (major), Cesium (major) and Ephedra (major).
By severity: 11 major · 147 moderate · 41 minor.
From our pharmacist’s overview on the Quetiapine page
“Quetiapine (Seroquel) treats schizophrenia and bipolar disorder, illnesses where an unplanned swing in the drug's blood level has real consequences, and that is why these 199 supplement interactions deserve a careful read rather than a shrug. Most of the risk runs through CYP3A4, the liver enzyme that clears quetiapine: grapefruit bloc…”
Reviewed by 2 · Jul 18, 2026
Taking Blue-green Algae as Part of a Dietary Supplement Product? Check It for Interactions
We hold 3,180 real supplement products containing Blue-green Algae, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Blue-green Algae. Even though Blue-green Algae itself has no known interaction with Quetiapine, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Blue-green Algae and Quetiapine 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.
#78 of 1,452 supplements looked up here in the last 7 days
#38 of 2,830 medications looked up here in the last 7 days
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 Blue-green Algae reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Blue-green Algae and Quetiapine 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.
About Blue-green Algae
What is Blue-green Algae?
- General nutrition and energy
- Antioxidant support
- Cholesterol and metabolic health
- Immune support
- Weight management
Blue-green algae are nutrient-rich aquatic microorganisms (such as spirulina and Klamath Lake algae) taken as a supplement for energy, nutrition, and general wellness. Evidence for most health claims is limited, and some products can be contaminated with toxins or heavy metals, so quality testing matters. Talk to your pharmacist or doctor before using, especially during pregnancy or breastfeeding.
Whole dried microorganism (algae biomass) · Tablets, capsules, powder, flakes, and liquid extracts
An interaction check asks whether these two react with each other — it does not ask whether Blue-green Algae is a good idea for someone in your situation. Here is what our Blue-green Algae record says about it on its own.
Blue-green Algae: dosing
There is no official, standardized dose for blue-green algae, and the amount varies a lot from product to product. Different species and forms (tablet, powder, or liquid) also differ in strength.The safest approach is to follow the directions on the product label and not exceed them.
From our Blue-green Algae monograph — the full record covers uses, side effects and every documented interaction.
About Quetiapine
What Is Quetiapine Used For?
Brand names: Seroquel, Dopaquel
Quetiapine treats schizophrenia and bipolar disorder in adults and certain age groups of children and adolescents. For bipolar disorder, it is approved for manic episodes (both as a stand-alone treatment and alongside lithium or divalproex) and for depressive episodes.
The extended-release form of quetiapine is also approved as add-on therapy for major depressive disorder (MDD) in adults who are already taking an antidepressant. The regular tablet form is not approved for this use.
Other Drugs & Blue-green Algae
Browse every other medication we’ve checked against Blue-green Algae — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
327 interactions
- Diclofenac Sodium ›
- Ibuprofen ›
- Aspirin ›
- Hydrocortisone ›
- Insulin (rdna) ›
- Naproxen ›
- Minocycline ›
- Prednisone ›
- Cyclosporine ›
- Dexamethasone ›
- Glyburide ›
- Insulin (pork) ›
- Prednisolone ›
- Tacrolimus ›
- Triamcinolone ›
- Diclofenac Potassium ›
- Dipyridamole ›
- Insulin (human) ›
- Ketoprofen ›
- Acarbose ›
- Betamethasone ›
- Bivalirudin ›
- Ciclesonide ›
- Insulin Glargine ›
- Semaglutide ›
- Warfarin Sodium ›
- Azathioprine ›
- Beclomethasone ›
- Beclomethasone Dipropionate ›
- Bromfenac Sodium ›
- Chlorpropamide ›
- Cladribine ›
- Cortisone Acetate ›
- Cyclophosphamide ›
- Dabigatran ›
- Daclizumab ›
- Denosumab ›
- Diclofenac Epolamine ›
- Exenatide ›
- Fingolimod ›
- Glipizide ›
- Glucagon ›
- Iloprost ›
- Insulin Lispro ›
- Metformin ›
- Methylprednisolone ›
- Piroxicam ›
- Repaglinide ›
- Sitagliptin ›
- Streptokinase ›
- Ticlopidine ›
- Tirzepatide ›
- Tofacitinib ›
- Treprostinil (oral) ›
- Triamcinolone Acetonide ›
- 6-mercaptopurine ›
- Abatacept ›
- Abciximab ›
- Abrocitinib ›
- Acenocoumarol ›
Showing 60 of 327 moderate interactions — see all 327 on the Blue-green Algae page.
No interaction 2,502 drugs checked — show the list
We also checked Blue-green Algae against these medications and found no known interaction in our sources. Open any page to confirm.
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Metoprolol ›
- Ivermectin ›
- Rosuvastatin ›
- Escitalopram ›
- Tadalafil ›
- Acetaminophen ›
- Valacyclovir ›
- Atorvastatin ›
- Docusate ›
- Hydroxyurea ›
- Abemaciclib ›
- Methamphetamine ›
- Sumatriptan ›
- Propranolol ›
- Lisdexamfetamine ›
- Acyclovir ›
- Bupropion ›
- Amoxicillin ›
- Lisinopril ›
- Bendamustine ›
- Amitriptyline ›
- Doxycycline ›
- Lamotrigine ›
- Fluoxetine ›
- Methotrexate ›
- Acetaminophen, Codeine ›
- Gabapentin ›
- Amphetamine ›
- Pregabalin ›
- Isotretinoin ›
- Dextroamphetamine ›
- Azithromycin ›
- Clonazepam ›
- Omeprazole ›
- Amlodipine Besylate ›
- Methylene Blue ›
- Duloxetine ›
- Letrozole ›
- Buspirone ›
- Citalopram ›
- Ciprofloxacin ›
- Bisoprolol ›
- Levothyroxine, Liothyronine ›
- Acetaminophen, Oxycodone ›
- Dapsone ›
- Diazepam ›
- Cyclopentolate ›
- Candesartan Cilexetil ›
- Mannitol ›
- Cephalexin ›
- Roxithromycin ›
- Pegunigalsidase Alfa-iwxj ›
- Atorvastatin Calcium ›
- Acetaminophen, Dextromethorphan, Doxylamine ›
Showing the 60 most looked-up of 2,502 medications checked with no known interaction — see the full Blue-green Algae list.
Blue-green Algae References
The 22 references that drive our Blue-green Algae 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.
- Jensen GS, Ginsberg DJ, Huerta P, et al. Consumption of Aphanizomenon flos-aquae has rapid effects on the circulation and function of immune cells in humans. A novel approach to nutritional mobilization of the immune system. JANA 2000;2:50-6.
- Iwasa M, Yamamoto M, Tanaka Y, et al. Spirulina-associated hepatotoxicity. Am J Gastroenterol 2002;97:3212-13. PubMed
- Hayashi O, Katoh T, Okuwaki Y. Enhancement of antibody production in mice by dietary Spirulina platensis. J Nutr Sci Vitaminol (Tokyo) 1994;40:431-41.. PubMed
- Vitale S, Miller NR, Mejico LJ, et al. A randomized, placebo-controlled, crossover clinical trial of super blue-green algae in patients with essential blepharospasm or Meige syndrome. Am J Ophthalmol 2004;138:18-32. PubMed
- Mani UV, Desai S, Iyer U. Studies on the long-term effect of spirulina supplementation on serum lipid profile and glycated proteins in NIDDM patients. J Nutraceut 2000;2(3):25-32. DOI
- Chiu HF, Yang SP, Kuo YL, et al. Mechanisms involved in the antiplatelet effect of C-phycocyanin. Br J Nutr 2006;95:435-40. PubMed
- Hsiao G, Chou PH, Shen MY, et al. C-phycocyanin, a very potent and novel platelet aggregation inhibitor from Spirulina platensis. J Agric Food Chem 2005;53:7734-40.
- Katz M, Levine AA, Kol-Degani H, Kav-Venaki L. A compound herbal preparation (CHP) in the treatment of children with ADHD: a randomized controlled trial. J Atten Disord 2010;14:281-91. PubMed
- Madhyastha, H. K., Radha, K. S., Sugiki, M., Omura, S., and Maruyama, M. Purification of c-phycocyanin from Spirulina fusiformis and its effect on the induction of urokinase-type plasminogen activator from calf pulmonary endothelial cells. Phytomedicine PubMed
- Mazokopakis, E. E., Karefilakis, C. M., Tsartsalis, A. N., Milkas, A. N., and Ganotakis, E. S. Acute rhabdomyolysis caused by Spirulina (Arthrospira platensis). Phytomedicine. 2008;15(6-7):525-527. PubMed
- Halidou, Doudou M., Degbey, H., Daouda, H., Leveque, A., Donnen, P., Hennart, P., and Dramaix-Wilmet, M. [The effect of spiruline during nutritional rehabilitation: systematic review]. Rev.Epidemiol.Sante Publique 2008;56(6):425-431.
- Konno, T., Umeda, Y., Umeda, M., Kawachi, I., Oyake, M., and Fujita, N. [A case of inflammatory myopathy with widely skin rash following use of supplements containing Spirulina]. Rinsho Shinkeigaku 2011;51(5):330-333. PubMed
- Le TM, Knulst AC, Röckmann H. Anaphylaxis to Spirulina confirmed by skin prick test with ingredients of Spirulina tablets. Food Chem Toxicol 2014;74:309-10. PubMed
- Rzymski P, Niedzielski P, Kaczmarek N, Jurczak T, Klimaszyk P. The multidisciplinary approach to safety and toxicity assessment of microalgae-based food supplements following clinical cases of poisoning. Harmful Algae 2015;46:34-42. DOI
- Petrus M, Culerrier R, Campistron M, et al. First case report of anaphylaxis to spirulin: identification of phycocyanin as responsible allergen. Allergy 2010;65(7):924-5. PubMed
- Marles RJ, Barrett ML, Barnes J, et al. United States Pharmacopeia safety evaluation of spirulina. Crit Rev Food Sci Nutr 2011;51(7):593-604. PubMed
- Majdoub H, Ben Mansour M, Chaubet F, et al. Anticoagulant activity of a sulfated polysaccharide from the green alga Arthrospira platensis. Biochim Biophys Acta 2009;1790(10):1377-81. PubMed
- Cha BG, Kwak HW, Park AR, et al. Structural characteristics and biological performance of silk fibroin nanofiber containing microalgae spirulina extract. Biopolymers 2014;101(4):307-18. PubMed
- Jensen GS, Drapeau C, Lenninger M, Benson KF. Clinical safety of a high dose of phycocyanin-enriched aqueous extract from Arthrospira (Spirulina) platensis: results from a randomized, double-Blind, placebo-controlled study with a focus on anticoagulant ac
- Hamedifard Z, Milajerdi A, Reiner Z, Taghizadeh M, Kolahdooz F, Asemi Z. The effects of spirulina on glycemic control and serum lipoproteins in patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized con
- Moradi S, Zobeiri M, Feizi A, Clark CCT, Entezari MH. The effects of spirulina (Arthrospira platensis) supplementation on anthropometric indices, blood pressure, sleep quality, mental health, fatigue status and quality of life in patients with ulcerative
- Ghanbari F, Amerizadeh A, Behshood P, Moradi S, Asgary S. Effect of microalgae arthrospira on biomarkers of glycemic control and glucose metabolism: a systematic Review and meta-analysis. Curr Probl Cardiol 2022;47(10):100942. 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.
Taking Blue-green Algae and Quetiapine Together: Common Questions
Is it safe to take Blue-green Algae with Quetiapine?
Do Blue-green Algae and Quetiapine have any of the same side effects?
Should I take Blue-green Algae and Quetiapine at the same time of day?
Are Blue-green Algae and Quetiapine used for the same thing?
How was the Blue-green Algae and Quetiapine combination checked?
Does Blue-green Algae interact with any other medications?
Does Quetiapine interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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