Drug & supplement interaction

Andrographis + Simvastatin

Simvastatin brand name: Zocor.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Andrographis and Simvastatin in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Andrographis and Simvastatin

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 Simvastatin and Andrographis 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.

Andrographis safety at a glance

Andrographis overall Use caution Often well tolerated short-term, but quality of products and long-term safety are not well established.
Pregnancy Possibly Unsafe When used orally. Andrographis is thought to have abortifacient effects; avoid using. Read the full pregnancy detail
Breastfeeding Avoid Not enough safety information, so avoid use while breastfeeding.

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 Simvastatin and Andrographis? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Simvastatin

Interactions in our licensed database are recorded against drug classes, not just single drug names. Simvastatin is filed under 8 classifications — including hmg-coa reductase inhibitors ("statins"), organic anion-transporting polypeptide substrates (oatp), glucuronidated drugs. Andrographis has documented interactions with 6 drug classes — the most serious being anticoagulant/antiplatelet drugs (moderate), antihypertensive drugs (moderate) and immunosuppressants (moderate) — and none of Simvastatin’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Andrographis Does Interact With Other Medications

Andrographis has 408 moderate, 5 minor known drug interactions in our database — Simvastatin isn’t one of them. If you take anything else, check it against the full list below.

Taking anything else?

Check Another of Your Medications Against Andrographis

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

What to actually watch for

No Interaction Found — But Data Suggests Andrographis and Simvastatin 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. 7 of them are worth acting on rather than waiting out — marked below.

  • Muscle weakness Worth acting on Additional detail

    Andrographis

    “Orally, andrographis has been associated with case reports of pain, muscle weakness, cramps, and paralysis.”

    Andrographis · Natural Medicines adverse-effect record, reported in pain.

    3 sources cited
    1. 31220. Burgos, R. A., Hancke, J. L., Bertoglio, J. C., Aguirre, V., Arriagada, S., Calvo, M., and Caceres, D. D. Efficacy of an Andrographis paniculata composition for the relief of rheumatoid arthritis symptoms: a prospective randomized placebo-controlled tria
    2. 91841. Suwankesawong W, Saokaew S, Permsuwan U, et al. Characterization of hypersensitivity reactions reported among Andrographis paniculata users in Thailand using Health Product Vigilance Center (HPVC) database. BMC Complement Altern Med. 2014; 14:515. PubMed
    3. 107783. Worakunphanich W, Thavorncharoensap M, Youngkong S, Thadanipon K, Thakkinstian A. Safety of Andrographis paniculata: A systematic review and meta-analysis. Pharmacoepidemiol Drug Saf 2021;30(6):727-739.

    Simvastatin

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

  • A severe skin reaction / Bleeding or bruising Worth acting on Additional detail

    Andrographis

    “Orally, andrographis has been frequently reported to cause maculopapular, erythematous rash, pruritus, and urticaria. Andrographis consumption has also been reported to cause angioedema, exfoliative dermatitis, skin exfoliation, Stevens-Johnson syndrome, acute generalized exanthematous pustulosis, bullous eruption, fixed eruption, stomatitis, allergic purpura, flushing, and swelling.

    Parenterally, there have been rep…”

    Andrographis · Natural Medicines adverse-effect record, reported in dermatitis.

    6 sources cited
    1. 31223. Tang, T., Targan, S. R., Li, Z. S., Xu, C., Byers, V. S., and Sandborn, W. J. Randomised clinical trial: herbal extract HMPL-004 in active ulcerative colitis - a double-blind comparison with sustained release mesalazine. Aliment.Pharmacol Ther 2011;33(2) PubMed
    2. 31222. Saxena, R. C., Singh, R., Kumar, P., Yadav, S. C., Negi, M. P., Saxena, V. S., Joshua, A. J., Vijayabalaji, V., Goudar, K. S., Venkateshwarlu, K., and Amit, A. A randomized double blind placebo controlled clinical evaluation of extract of Andrographis pa
    3. 31233. Melchior, J., Palm, S., and Wikman, G. Controlled clinical study of standardized Andrographis paniculata extract in common cold - a pilot trial. Phytomedicine. 1997;3(4):315-318. PubMed
    4. 12380. Poolsup N, Suthisisang C, Prathanturarug S, et al. Andrographis paniculata in the symptomatic treatment of uncomplicated upper respiratory tract infection: systematic review of randomized controlled trials. J Clin Pharm Ther 2004;29:37-45. PubMed
    5. 31231. Sandborn, W. J., Targan, S. R., Byers, V. S., Rutty, D. A., Mu, H., Zhang, X., and Tang, T. Andrographis paniculata extract (HMPL-004) for active ulcerative colitis. Am J Gastroenterol. 2013;108(1):90-98. PubMed
    6. 31220. Burgos, R. A., Hancke, J. L., Bertoglio, J. C., Aguirre, V., Arriagada, S., Calvo, M., and Caceres, D. D. Efficacy of an Andrographis paniculata composition for the relief of rheumatoid arthritis symptoms: a prospective randomized placebo-controlled tria

    Simvastatin

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

  • A severe allergic reaction / Hives Worth acting on Additional detail

    Andrographis

    “Orally, andrographis is generally well tolerated. Adverse effects are more likely when doses reach or exceed 5-10 mg/kg of andrographolide content and when treatment duration exceeds 14 days.

    Most Common Adverse Effects:

    Orally: Abdominal discomfort, altered taste, diarrhea, dizziness, fatigue, headache, nausea and vomiting, pruritus, rash, and urticaria.

    Serious Adverse Effects (Rare):

    Orally: Severe allergic reacti…”

    Andrographis · Natural Medicines adverse-effect record, reported in cluster headache.

    Simvastatin

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

  • Liver problems Worth acting on Additional detail

    Andrographis

    “Orally, there is one case report of hepatitis associated with andrographis use.”

    Andrographis · Natural Medicines adverse-effect record, reported in hepatitis.

    1 source cited
    1. 91841. Suwankesawong W, Saokaew S, Permsuwan U, et al. Characterization of hypersensitivity reactions reported among Andrographis paniculata users in Thailand using Health Product Vigilance Center (HPVC) database. BMC Complement Altern Med. 2014; 14:515. PubMed

    Simvastatin

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

  • An allergic reaction Worth acting on Additional detail

    Andrographis

    Recorded for Andrographis in the same Natural Medicines adverse-effect record shown under A severe allergic reaction / Hives above.

    Simvastatin

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

  • Flushing Additional detail

    Andrographis

    Recorded for Andrographis in the same Natural Medicines adverse-effect record shown under A severe skin reaction / Bleeding or bruising above.

    Simvastatin

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

  • Trouble sleeping Additional detail

    Andrographis

    “Orally, andrographis has been reported to cause headache, fatigue, anorexia, somnolence, insomnia, lethargy, malaise, and drowsiness. Headache and fatigue occurred more often with high doses of the andrographolide constituent (5-10 mg/kg daily) in one clinical trial.”

    Andrographis · Natural Medicines adverse-effect record, reported in anorexia.

    6 sources cited
    1. 2748. Thamlikitkul V, Dechatiwongse T, Theerapong S, et al. Efficacy of Andrographis paniculata, Nees for pharyngotonsillitis in adults. J Med Assoc Thai 1991;74:437-42.
    2. 5784. Melchoir J, Spasov AA, Ostrovskij OV, et al. Double-blind, placebo-controlled pilot and phase III study of activity of standardized Andrographis paniculata Herba Nees extract fixed combination (Kan Jang) in the treatment of uncomplicated upper-respirator
    3. 6767. Calabrese C, Berman SH, Babish JG, et al. A phase I trial of andrographolide in HIV positive patients and normal volunteers. Phytother Res 2000;14:333-8. PubMed
    4. 10795. Gabrielian ES, Shukarian AK, Goukasova GI, et al. A double blind, placebo-controlled study of Andrographis paniculata fixed combination Kan Jang in the treatment of acute upper respiratory tract infections including sinusitis. Phytomedicine 2002;9:589-97 PubMed
    5. 12380. Poolsup N, Suthisisang C, Prathanturarug S, et al. Andrographis paniculata in the symptomatic treatment of uncomplicated upper respiratory tract infection: systematic review of randomized controlled trials. J Clin Pharm Ther 2004;29:37-45. PubMed
    6. 13016. Coon JT, Ernst E. Andrographis paniculata in the treatment of upper respiratory tract infections: a systematic review of safety and efficacy. Planta Med 2004;70:293-8.

    Simvastatin

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

  • Tiredness reported in 9.2% of FDA reports for Simvastatin Additional detail

    Andrographis

    Recorded for Andrographis in the same Natural Medicines adverse-effect record shown under A severe allergic reaction / Hives above.

    Simvastatin

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

Showing the 10 most notable of 18 shared effects — ranked by how unusual each one is, not just whether both lists mention it.

Reported for Andrographis but not commonly for Simvastatin: sweating, dry skin, a change in taste and a fast or pounding heartbeat.

Effects for Simvastatin come from the ADVERSE REACTIONS section of its FDA label; effects for Andrographis come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 261,345 voluntary FDA FAERS reports for Simvastatin that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Andrographis in Pregnancy & Breastfeeding

Pregnancy Possibly Unsafe

When used orally. Andrographis is thought to have abortifacient effects; 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

Overlapping uses

What Simvastatin Is Prescribed For, and What Andrographis Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Simvastatin is a prescription medicine with approved uses on its FDA label. Andrographis is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Simvastatin is prescribed for: Simvastatin tablets are used alongside a cholesterol-lowering diet to treat high LDL cholesterol (bad cholesterol), high triglycerides, and certain inherited cholesterol disorders, including heterozygous familial hypercholesterolemia (HeFH) in adults and children aged 10 and older, and homozygous familial hypercholesterolemia (HoFH) in adults. In adults who already have coronary heart disease, cerebrovascular disease, peripheral vascular disease, or diabetes and are at high risk for heart events, simvastatin is also used to reduce the risk of death from heart disease, non-fatal heart attack, stroke, and the need for procedures to open blocked arteries. Zocor is one brand-name product containing simvastatin and carries these same indications.

Andrographis has been studied for:

  • Diabetes studied, not established Andrographis has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Andrographis for diabetes

    Oral andrographis has only been evaluated in combination with other ingredients; its effect when used alone is unclear.

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 Simvastatin on your own; if you are taking Andrographis for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Andrographis or Simvastatin

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Andrographis or Simvastatin, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Simvastatin

This page covers Andrographis only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Simvastatin page lists 183 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Apple (major), Beer (major), Grapefruit (major) and Siberian Cocklebur (major).

By severity: 8 major · 139 moderate · 36 minor.

Open the Simvastatin interaction page

One more smart check

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

We hold 656 real supplement products containing Andrographis, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Andrographis. Even though Andrographis itself has no known interaction with Simvastatin, 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 Andrographis and Simvastatin 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 Andrographis
Top 25%

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

29 days ago today
Medication Simvastatin
Top half

#1,303 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 Andrographis reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Andrographis and Simvastatin records this page draws on were last updated July 11, 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 Andrographis

What is Andrographis?

Andrographis
  • Common cold and flu symptoms
  • Upper respiratory infections
  • Sore throat
  • Fever
  • Immune support
  • Digestive complaints

Andrographis is a bitter Asian herb traditionally used for colds, flu, and infections, and some studies suggest it may ease cold symptoms and shorten how long they last. The evidence is limited and the quality of studies varies, so it should not replace standard care. Talk to your pharmacist or doctor before using it, and avoid it during pregnancy.

Andrographis paniculata · Acanthaceae · Leaves and above-ground (aerial) parts · Capsules, tablets, tinctures, teas, and standardized extracts

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

Andrographis: dosing

There is no single official or standardized dose of Andrographis. Products differ in how they are made and in how much andrographolide they contain, which makes general dosing recommendations difficult.Many cold-related products are standardized to a specific amount of andrographolide and are usually taken for a short period at the start of symptoms.

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

Read the full Andrographis monograph & all interactions
Medication

About Simvastatin

What Is Simvastatin Used For?

Brand name: Zocor

Simvastatin tablets are used alongside a cholesterol-lowering diet to treat high LDL cholesterol (bad cholesterol), high triglycerides, and certain inherited cholesterol disorders, including heterozygous familial hypercholesterolemia (HeFH) in adults and children aged 10 and older, and homozygous familial hypercholesterolemia (HoFH) in adults.

In adults who already have coronary heart disease, cerebrovascular disease, peripheral vascular disease, or diabetes and are at high risk for heart events, simvastatin is also used to reduce the risk of death from heart disease, non-fatal heart attack, stroke, and the need for procedures to open blocked arteries. Zocor is one brand-name product containing simvastatin and carries these same indications.

Most-Reported Side Effects for Simvastatin

From FAERS, the FDA’s public side-effect reporting system (263,006 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 14,524 reports
Nausea 14,119 reports
Dyspnea 13,226 reports
Diarrhea 12,591 reports
Dizziness 11,830 reports
See full Simvastatin drug information
Keep checking

Other Drugs & Andrographis

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

0Major
408Moderate
5Minor
2,416No known interaction
Moderate

408 interactions

Showing 60 of 408 moderate interactions — see all 408 on the Andrographis page.

Minor

5 interactions

No interaction 2,416 drugs checked — show the list
Evidence & sources

Andrographis References

The 26 references that drive our Andrographis 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. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Thamlikitkul V, Dechatiwongse T, Theerapong S, et al. Efficacy of Andrographis paniculata, Nees for pharyngotonsillitis in adults. J Med Assoc Thai 1991;74:437-42.
  3. Zhang CY, Tan BK. Mechanisms of cardiovascular activity of Andrographis paniculata in the anaesthetized rat. J Ethnopharmacol 1997;56:97-101. PubMed
  4. Zhao HY, Fang WY. Antithrombotic effects of Andrographis paniculata nees in preventing myocardial infarction. Chin Med J (Engl) 1991;104:770-5.
  5. Amroyan E, Gabrielian E, Panossian A, et al. Inhibitory effect of andrographolide from Andrographis paniculata on PAF-induced platelet aggregation. Phytomedicine 1999;6:27-31. PubMed
  6. Zhang C, Kuroyangi M, Tan BK. Cardiovascular activity of 14-deoxy-11,12-didehydroandrographolide in the anaesthetised rat and isolated right atria. Pharmacol Res 1998;38:413-7. PubMed
  7. Puri A, Saxena R, Saxena RP, et al. Immunostimulant agents from Andrographis paniculata. J Nat Prod 1993;56:995-9. PubMed
  8. Melchoir J, Spasov AA, Ostrovskij OV, et al. Double-blind, placebo-controlled pilot and phase III study of activity of standardized Andrographis paniculata Herba Nees extract fixed combination (Kan Jang) in the treatment of uncomplicated upper-respirator
  9. Calabrese C, Berman SH, Babish JG, et al. A phase I trial of andrographolide in HIV positive patients and normal volunteers. Phytother Res 2000;14:333-8. PubMed
  10. Gabrielian ES, Shukarian AK, Goukasova GI, et al. A double blind, placebo-controlled study of Andrographis paniculata fixed combination Kan Jang in the treatment of acute upper respiratory tract infections including sinusitis. Phytomedicine 2002;9:589-97 PubMed
  11. Poolsup N, Suthisisang C, Prathanturarug S, et al. Andrographis paniculata in the symptomatic treatment of uncomplicated upper respiratory tract infection: systematic review of randomized controlled trials. J Clin Pharm Ther 2004;29:37-45. PubMed
  12. Coon JT, Ernst E. Andrographis paniculata in the treatment of upper respiratory tract infections: a systematic review of safety and efficacy. Planta Med 2004;70:293-8.
  13. Kligler, B., Ulbricht, C., Basch, E., Kirkwood, C. D., Abrams, T. R., Miranda, M., Singh Khalsa, K. P., Giles, M., Boon, H., and Woods, J. Andrographis paniculata for the treatment of upper respiratory infection: a systematic review by the natural standa
  14. Burgos, R. A., Hancke, J. L., Bertoglio, J. C., Aguirre, V., Arriagada, S., Calvo, M., and Caceres, D. D. Efficacy of an Andrographis paniculata composition for the relief of rheumatoid arthritis symptoms: a prospective randomized placebo-controlled tria
  15. Saxena, R. C., Singh, R., Kumar, P., Yadav, S. C., Negi, M. P., Saxena, V. S., Joshua, A. J., Vijayabalaji, V., Goudar, K. S., Venkateshwarlu, K., and Amit, A. A randomized double blind placebo controlled clinical evaluation of extract of Andrographis pa

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 Andrographis and Simvastatin Together: Common Questions

Is it safe to take Andrographis with Simvastatin?
We do not list a known interaction between Andrographis and Simvastatin. 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 Andrographis and Simvastatin have any of the same side effects?
Yes — our sources link each of them separately to 10 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Are Andrographis and Simvastatin used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Andrographis in each. That is a conversation for your prescriber, especially if Simvastatin is being adjusted to a target.
How was the Andrographis and Simvastatin combination checked?
Interactions in our licensed database are recorded against drug classes. Simvastatin is filed under 8 classifications, and Andrographis has documented interactions with 6 drug classes — none of Simvastatin's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Andrographis interact with any other medications?
Yes. Andrographis has 413 documented drug interactions in our database — Simvastatin is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Simvastatin interact with any supplements?
Yes. Simvastatin has documented interactions with 183 supplements in our database — Andrographis is not one of them. The Simvastatin 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 Simvastatin and Andrographis?

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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.