Forget-me-not + Valrubicin
Valrubicin brand name: Valstar.
We found no known interaction between Forget-me-not and Valrubicin 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.
Forget-me-not and Valrubicin
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 Valrubicin and Forget-me-not 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 Forget-me-not at all — not against Valrubicin, 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.
Forget-me-not safety at a glance
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.
Forget-me-not in Pregnancy & Breastfeeding
When used orally, due to possible hepatotoxic pyrrolizidine alkaloid content; 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
See Every Supplement That Interacts With Valrubicin
This page covers Forget-me-not only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Valrubicin page lists 24 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Acerola (moderate), Alpha-lipoic Acid (moderate), Coffee Charcoal (moderate) and European Mandrake (moderate).
By severity: 1 major · 14 moderate · 9 minor.
From our pharmacist’s overview on the Valrubicin page
“Activated charcoal is the supplement I would flag hardest for anyone receiving valrubicin (Valstar), a chemotherapy instilled directly into the bladder for cancer. It carries the only major rating among the 24 ingredients on this page, since charcoal can bind and clear many drugs from the body even when they are not swallowed.”
Reviewed by 2 · Jul 18, 2026
Where Forget-me-not and Valrubicin 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.
#1,275 of 1,452 supplements looked up here in the last 7 days
#1,910 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 Forget-me-not reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Forget-me-not and Valrubicin 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 Forget-me-not
What is Forget-me-not?
- Respiratory complaints (cough, bronchitis)
- Nosebleeds and minor bleeding (traditional)
- Eye complaints (folk use)
- Skin and wound care (topical, traditional)
- General tonic in folk medicine
Forget-me-not (Myosotis) is a small flowering plant used in folk medicine, mostly for coughs and minor ailments, but there is very little scientific research to support any health benefit. Because it belongs to a plant family that can contain potentially liver-harming compounds, and because safety data are lacking, it is best used cautiously, if at all, and avoided in pregnancy and breastfeeding.
Myosotis scorpioides · Boraginaceae · Aerial parts (flowers, leaves, and stems) · Tea, tincture, dried herb, occasionally topical preparations
An interaction check asks whether these two react with each other — it does not ask whether Forget-me-not is a good idea for someone in your situation. Here is what our Forget-me-not record says about it on its own.
Forget-me-not: dosing
There is no established or standardized dose for forget-me-not. It has not been studied enough to know a safe and effective amount.If you choose to use a product that contains it, follow the directions on the label and do not exceed them.
From our Forget-me-not monograph — the full record covers uses, side effects and every documented interaction.
About Valrubicin Intravesical
What Is Valrubicin Intravesical Used For?
Brand name: Valstar
Valrubicin Intravesical Solution is used to treat BCG-refractory carcinoma in situ (CIS) of the urinary bladder — meaning bladder cancer that has not responded to BCG immunotherapy. It is given directly into the bladder (intravesically) rather than taken by mouth or injected into the bloodstream.
This treatment is specifically for patients whose cancer has not responded to BCG and for whom having the bladder surgically removed (cystectomy) right away would carry unacceptable health risks.
Most-Reported Side Effects for Valrubicin
From FAERS, the FDA’s public side-effect reporting system (177 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Forget-me-not
Browse every other medication we’ve checked against Forget-me-not — 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 Forget-me-not against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Losartan Potassium ›
- Testosterone ›
- Ivermectin ›
- Abemaciclib ›
- Aspirin ›
- Metoprolol ›
- Acetaminophen ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Tadalafil ›
- Docusate ›
- Tirzepatide ›
- Ibuprofen ›
- Methamphetamine ›
- Hydroxyurea ›
- Warfarin Sodium ›
- Valacyclovir ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Lisdexamfetamine ›
- Propranolol ›
- Metformin ›
- Amitriptyline ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Methotrexate ›
- Amlodipine Besylate ›
- Bendamustine ›
- Bupropion ›
- Amphetamine ›
- Fluoxetine ›
- Doxycycline ›
- Acyclovir ›
- Azithromycin ›
- Lamotrigine ›
- Pregabalin ›
- Dextroamphetamine ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Quetiapine ›
- Clonazepam ›
- Levothyroxine, Liothyronine ›
- Naproxen ›
- Omeprazole ›
- Letrozole ›
- Methylene Blue ›
- Duloxetine ›
- Citalopram ›
- Buspirone ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Forget-me-not list.
Forget-me-not References
The 1 references that drive our Forget-me-not 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.
- Roeder E. Medicinal plants in Europe containing pyrrolizidine alkaloids. Pharmazie 1995;50:83-98.
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 Forget-me-not and Valrubicin Together: Common Questions
Is it safe to take Forget-me-not with Valrubicin?
Do Forget-me-not and Valrubicin have any of the same side effects?
Does Valrubicin interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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Still Have a Question About Valrubicin and Forget-me-not?
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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.