Goa Powder + Macitentan
Macitentan brand name: Opsumit.
We found no known interaction between Goa Powder and Macitentan 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.
Goa Powder and Macitentan
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 Macitentan and Goa Powder in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.
Worth understanding: our licensed dataset holds no drug-interaction record for Goa Powder at all — not against Macitentan, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.
If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.
Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.
Goa Powder safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Macitentan
This page covers Goa Powder only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Macitentan page lists 253 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Beer (major) and Grapefruit (major).
By severity: 9 major · 205 moderate · 39 minor.
From our pharmacist’s overview on the Macitentan page
“If you take macitentan (Opsumit) for pulmonary arterial hypertension, study this page rather than skim it. It lists 253 supplement and herbal ingredients, nine rated major.”
Reviewed by 2 · Jul 18, 2026
Where Goa Powder and Macitentan 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.
#1,316 of 1,452 supplements looked up here in the last 7 days
#507 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 Goa Powder reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Goa Powder and Macitentan 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.
About Goa Powder
What is Goa Powder?
- Psoriasis (topical)
- Ringworm and other fungal skin infections
- Scaly skin conditions
- Eczema-like rashes
Goa powder (also called araroba) is a natural source of chrysarobin, a substance historically used on the skin for psoriasis and fungal infections. It is a harsh, irritating chemical that is mostly of historical interest today, and it should never be swallowed. If you are considering anything containing chrysarobin or anthralin, talk with a doctor or pharmacist first.
Andira araroba · Fabaceae · A yellow powder (chrysarobin) extracted from the wood and trunk cavities of the araroba tree · Topical ointments, pastes, and creams; historically a raw powder
An interaction check asks whether these two react with each other — it does not ask whether Goa Powder is a good idea for someone in your situation. Here is what our Goa Powder record says about it on its own.
Goa Powder: dosing
There is no established or standardized dose for Goa powder as a supplement. Historically it was mixed into ointments at concentrations chosen by a pharmacist or physician, and even then it had to be used carefully because of irritation and staining.If you encounter a product that contains chrysarobin or the related medicine anthralin, follow the product label exactly and do not apply more than directed. Because this is a potent and irritating substance, it is best to use it only under the guidance of a doctor or pharmacist.
From our Goa Powder monograph — the full record covers uses, side effects and every documented interaction.
About Macitentan
What Is Macitentan Used For?
Brand name: Opsumit
Macitentan tablets — sold under the brand name Opsumit — are used to treat pulmonary arterial hypertension (PAH, WHO Group I), a type of high blood pressure in the arteries of the lungs. The goal is to slow the disease from getting worse and to lower the chance of being hospitalized because of PAH.
In the key clinical study, macitentan was used in adults with mainly moderate-to-severe PAH symptoms. Patients had PAH caused by unknown or inherited causes, connective tissue disorders, or congenital heart disease with repaired shunts.
Most-Reported Side Effects for Macitentan
From FAERS, the FDA’s public side-effect reporting system (68,860 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Goa Powder
Browse every other medication we’ve checked against Goa Powder — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Goa Powder against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Ivermectin ›
- Abemaciclib ›
- Testosterone ›
- Losartan Potassium ›
- Sertraline ›
- Acetaminophen ›
- Rosuvastatin ›
- Aspirin ›
- Metoprolol ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Rivaroxaban ›
- Isotretinoin ›
- Tirzepatide ›
- Ibuprofen ›
- Warfarin Sodium ›
- Levothyroxine, Liothyronine ›
- Amlodipine Besylate ›
- Docusate ›
- Methamphetamine ›
- Amitriptyline ›
- Metformin ›
- Prednisone ›
- Tadalafil ›
- Lisdexamfetamine ›
- Semaglutide ›
- Hydroxyurea ›
- Valacyclovir ›
- Amphetamine ›
- Sumatriptan ›
- Propranolol ›
- Methotrexate ›
- Lisinopril ›
- Amoxicillin ›
- Bupropion ›
- Fluoxetine ›
- Azithromycin ›
- Doxycycline ›
- Pregabalin ›
- Acetaminophen, Aspirin, Caffeine ›
- Gabapentin ›
- Dextroamphetamine ›
- Lamotrigine ›
- Naproxen ›
- Bendamustine ›
- Quetiapine ›
- Clonazepam ›
- Acyclovir ›
- Buspirone ›
- Duloxetine ›
- Omeprazole ›
- Letrozole ›
- Citalopram ›
- Methylene Blue ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Goa Powder list.
Goa Powder References
The 1 references that drive our Goa Powder 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.
- Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
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.
Macitentan Is Linked to Lower Levels of One Nutrient
Natural Medicines records Macitentan as a medicine that can lower these. This is not an interaction with Goa Powder — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Macitentan nutrient depletion report ›
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Goa Powder and Macitentan Together: Common Questions
Is it safe to take Goa Powder with Macitentan?
Do Goa Powder and Macitentan have any of the same side effects?
Does Macitentan interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.