Maca + Mechlorethamine Hydrochloride
Mechlorethamine Hydrochloride brand name: Valchlor.
We found no known interaction between Maca and Mechlorethamine Hydrochloride 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.
Maca and Mechlorethamine Hydrochloride
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 Mechlorethamine Hydrochloride and Maca 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 Maca at all — not against Mechlorethamine Hydrochloride, 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.
Maca safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Questions About Maca or Mechlorethamine Hydrochloride
These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Maca or Mechlorethamine Hydrochloride, 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.
See Every Supplement That Interacts With Mechlorethamine Hydrochloride
This page covers Maca only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Mechlorethamine Hydrochloride page lists 10 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Acerola (moderate), Alpha-lipoic Acid (moderate), Coenzyme Q10 (moderate), Dimethylsulfoxide (dmso) (moderate) and Rose Hip (moderate).
By severity: 9 moderate · 1 minor.
From our pharmacist’s overview on the Mechlorethamine Hydrochloride page
“Mechlorethamine (Valchlor) is a chemotherapy gel applied to the skin for a form of lymphoma, and the 10 supplements on this page split into two groups. Seven are antioxidants, everyday products like vitamin C and turmeric, which in theory could blunt how well an alkylating chemotherapy drug works.”
Reviewed by 2 · Jul 18, 2026
Taking Maca as Part of a Dietary Supplement Product? Check It for Interactions
We hold 2,489 real supplement products containing Maca, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Maca. Even though Maca itself has no known interaction with Mechlorethamine Hydrochloride, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Maca and Mechlorethamine Hydrochloride 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.
#77 of 1,452 supplements looked up here in the last 7 days
#2,034 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 Maca reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Maca and Mechlorethamine Hydrochloride 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 Maca
What is Maca?
- Low libido and sexual function
- Energy and stamina
- Menopause symptoms
- Mood and stress
- Fertility support
Maca is a nutrient-rich Andean root often used for energy, libido, and menopause symptoms. Early studies suggest it may modestly help sexual desire and some menopause symptoms, but the evidence is limited and not conclusive. It appears generally well tolerated in food amounts, but talk to your pharmacist or doctor before using it, especially if you are pregnant, breastfeeding, or have a hormone-related condition.
Lepidium meyenii · Brassicaceae · Root (hypocotyl) · Capsules, powder, tablets, liquid extracts, gelatinized powder
An interaction check asks whether these two react with each other — it does not ask whether Maca is a good idea for someone in your situation. Here is what our Maca record says about it on its own.
Maca: dosing
There is no official or standardized dose of maca, and the amounts used in studies have varied widely. Because of this, it is best to follow the directions on the product label.Maca is sold in different forms, including raw powder, gelatinized powder, capsules, and extracts, and the strength can differ between products. Do not assume that taking more will work better or be safer.
From our Maca monograph — the full record covers uses, side effects and every documented interaction.
About Mechlorethamine Topical
What Is Mechlorethamine Topical Used For?
Brand name: Valchlor
Valchlor (mechlorethamine gel applied to the skin) is approved to treat Stage IA and IB mycosis fungoides-type cutaneous T-cell lymphoma — a slow-growing cancer that primarily affects the skin. It is used in patients who have already received at least one prior skin-directed treatment.
Most-Reported Side Effects for Mechlorethamine Hydrochloride
From FAERS, the FDA’s public side-effect reporting system (2,244 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Maca
Browse every other medication we’ve checked against Maca — 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 Maca against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Metoprolol ›
- Ivermectin ›
- Aspirin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Escitalopram ›
- Acetaminophen ›
- Tadalafil ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Valacyclovir ›
- Hydroxyurea ›
- Abemaciclib ›
- Ibuprofen ›
- Methamphetamine ›
- Semaglutide ›
- Sumatriptan ›
- Tirzepatide ›
- Warfarin Sodium ›
- Prednisone ›
- Propranolol ›
- Bupropion ›
- Lisdexamfetamine ›
- Metformin ›
- Amoxicillin ›
- Acyclovir ›
- Lisinopril ›
- Bendamustine ›
- Amitriptyline ›
- Doxycycline ›
- Methotrexate ›
- Lamotrigine ›
- Fluoxetine ›
- Amphetamine ›
- Gabapentin ›
- Pregabalin ›
- Acetaminophen, Codeine ›
- Azithromycin ›
- Dextroamphetamine ›
- Isotretinoin ›
- Clonazepam ›
- Omeprazole ›
- Quetiapine ›
- Methylene Blue ›
- Amlodipine Besylate ›
- Duloxetine ›
- Letrozole ›
- Buspirone ›
- Citalopram ›
- Naproxen ›
- Ciprofloxacin ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Maca list.
Maca References
The 1 references that drive our Maca 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.
- Valerio, L. G., Jr. and Gonzales, G. F. Toxicological aspects of the South American herbs cat's claw (Uncaria tomentosa) and Maca (Lepidium meyenii) : a critical synopsis. Toxicol.Rev 2005;24(1):11-35. 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.
Mechlorethamine Hydrochloride Is Linked to Lower Levels of One Nutrient
Natural Medicines records Mechlorethamine Hydrochloride as a medicine that can lower these. This is not an interaction with Maca — 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 Mechlorethamine Hydrochloride 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 Maca and Mechlorethamine Hydrochloride Together: Common Questions
Is it safe to take Maca with Mechlorethamine Hydrochloride?
Does Mechlorethamine Hydrochloride interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Mechlorethamine Hydrochloride and Maca?
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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.