Drug & supplement interaction

Bacopa + Cyproheptadine

Cyproheptadine brand name: Periactin.

Moderate Interaction
Medically reviewed by · Updated October 2026
The bottom line Moderate

Bacopa has a moderate interaction with Cyproheptadine. Theoretically, concurrent use might decrease the effectiveness of both agents.

Read the full interaction report
SeverityModerate
LikelihoodPossible
EvidenceD
What do Severity, Likelihood & Evidence mean?
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Interaction report

Bacopa and Cyproheptadine

Here is the interaction we found between these two, with the evidence behind it.

Moderate

ANTICHOLINERGIC DRUGS

Why this applies to Cyproheptadine

Cyproheptadine falls under ANTICHOLINERGIC DRUGS — the group Bacopa interacts with.

Theoretically, concurrent use might decrease the effectiveness of both agents.
Bacopa seems to inhibit acetylcholinesterase and might increase acetylcholine levels, which could counteract the effects of anticholinergic drugs. Similarly, anticholinergic drugs might counteract the cholinergic effects of bacopa.
Severity Moderate Likelihood Possible Evidence D

Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the simple version. Cyproheptadine (Periactin) works by blocking acetylcholine, one of the brain and body's chemical messengers. Bacopa appears to do the opposite, nudging acetylcholine levels up. Because they pull in opposite directions, taking them together could, in theory, blunt each other a little. You might notice your cyproheptadine doesn't calm the itching, sneezing, or runny nose quite as well, and bacopa's memory benefits could also be dampened.

I want to be honest about the strength of this: it's a theoretical concern based on how these two work, not something proven in real patients. It's worth a quick mention to your pharmacist or doctor, but it's not a reason to panic or stop anything on your own.

Contact Dr. Brian directly if you have additional questions on this interaction
References
  1. Morgan A, Stevens J. Does Bacopa monnieri improve memory performance in older persons? Results of a randomized, placebo-controlled, double-blind trial. J Altern Complement Med 2010;16:753-9.

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Bacopa Also Interacts With Other Medications

Bacopa has 918 moderate, 13 minor known drug interactions in our database — the Cyproheptadine one above is one of them. If you take anything else, check it against the full list below.

Moderate 918 Minor 13 No known interaction 1,899 (incl. Cyproheptadine)
Taking anything else?

Check Another of Your Medications Against Bacopa

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

Everything else you take

See Every Supplement That Interacts With Cyproheptadine

This page covers Bacopa only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Cyproheptadine page lists 72 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Henbane (major), Scopolia (major), Alfalfa (moderate) and Angel's Trumpet (moderate).

By severity: 3 major · 57 moderate · 12 minor.

From our pharmacist’s overview on the Cyproheptadine page

“Cyproheptadine (Periactin) is an older antihistamine that dries you out and slows you down on its own, which is exactly why its supplement list warrants genuine care rather than a quick skim. Of the 72 ingredients on file, three carry a major rating.”

Reviewed by 2 · Jul 18, 2026

Open the Cyproheptadine interaction page

One more smart check

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

We hold 1,420 real supplement products containing Bacopa, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Bacopa. Your product may carry other ingredients that interact with Cyproheptadine too, on top of Bacopa — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Bacopa and Cyproheptadine 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 Bacopa
Top 10%

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

29 days ago today
Medication Cyproheptadine
Top half

#997 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.

Supplement

About Bacopa

What is Bacopa?

Bacopa
  • Memory and cognitive support
  • Anxiety and stress
  • ADHD symptoms
  • Age-related memory decline
  • General brain health

Bacopa is an Ayurvedic herb most often used for memory and thinking. Some small studies suggest it may modestly help memory when taken regularly for several weeks, but the evidence is limited and quality varies. It is generally well tolerated but can cause stomach upset, and it should be avoided in pregnancy and breastfeeding due to a lack of safety data.

Read the full Bacopa monograph & all interactions
Medication

About Cyproheptadine

What Is Cyproheptadine Used For?

Brand name: Periactin

Cyproheptadine treats a range of allergy-related problems. These include year-round and seasonal allergic rhinitis, vasomotor rhinitis, and allergic conjunctivitis (eye irritation) caused by inhaled allergens and foods.

It is also used for mild, uncomplicated skin reactions like urticaria (hives) and angioedema (swelling under the skin), cold urticaria, and dermatographism. It can ease allergic reactions to blood or plasma. After a severe anaphylactic reaction has been brought under control, it can be used alongside epinephrine and other standard treatments. The tablet and the oral solution or syrup labels list the same uses.

See full Cyproheptadine drug information
Keep checking

Other Drugs & Bacopa

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

0Major
918Moderate
13Minor
1,898No known interaction
918 Moderate 13 Minor 1,898 No interaction
Moderate

918 interactions

Showing 60 of 918 moderate interactions — see all 918 on the Bacopa page.

Minor

13 interactions

No interaction 1,898 drugs checked — show the list

We also checked Bacopa against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 1,898 medications checked with no known interaction — see the full Bacopa list.

See the full Bacopa interactions page
See every supplement checked against Cyproheptadine, ranked by severity
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Keep exploring
Bacopa monograph › Uses, safety, and every drug interaction in one place Cyproheptadine supplement interactions › Every supplement checked against Cyproheptadine, ranked by severity Cyproheptadine drug information › The full plain-English guide to this medication Supplement interaction checker › Check any supplement or product against your medications Browse medications A–Z › Every drug we've checked against herbs & supplements Ask a pharmacist › Free, personal answer from our licensed team
Pharmacist Counseling Corner

Taking Bacopa and Cyproheptadine Together: Common Questions

Can you take Bacopa with Cyproheptadine?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Bacopa and Cyproheptadine interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Still Have a Question About Cyproheptadine and Bacopa?

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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.