Herb & supplement monograph

Piracetam Drug Interactions, Uses, Effectiveness, Safety & More

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS ·Updated July 2026

What is this page for?

First and foremost: how Piracetam interacts with medications. The heart of this page is the interaction list — every drug Piracetam is known to interact with, and how serious each one is.

But these pages have grown well beyond that into a full monograph — what Piracetam is, what people use it for and how strong the evidence is, its safety and side effects, and answers to the questions we’re asked most — written and reviewed by the clinical staff at HelloPharmacist. It’s educational information from our licensed clinical databases, not medical advice, and we don’t sell or endorse products. Our editorial policy

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Reviewed by licensed pharmacists Sourced from Natural Medicines

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Piracetam Drug Interactions: The Bottom Line

From the HelloPharmacist Editorial Team · Updated July 2026

Based on the available evidence, the risk of a clinically significant Piracetam drug interaction is high for anyone taking a blood-thinning medication, since every interaction on record is rated major. All of the listed interactions fall into a single category, anticoagulant and antiplatelet drugs, and each carries reasonably good human evidence behind it.

Interactions deserving the most attention

The one clear concern is combining piracetam with anticoagulant or antiplatelet medications, often called blood thinners. Preliminary human research shows that even a single dose of piracetam can reduce the ability of platelets to clump together, which is one of the ways the body stops bleeding. Adding that effect to a medicine already meant to thin the blood could raise bleeding risk, and these are closely monitored drugs where small changes can matter.

What the rest of the list means

Although the number of interacting medications looks large, it reflects one shared issue: many different prescription products reduce clotting, and each one counts separately. If you do not take a blood-thinning medication, none of the listed interactions applies to you. The added bleeding risk has not been directly proven when the drugs are combined; it is predicted from piracetam's measured effect on platelets.

Check your medications against Piracetam

Based on HelloPharmacist’s Piracetam interaction data and reviewed under our editorial standards.

Interaction report

Drugs that interact with Piracetam

122 medications have a known interaction with Piracetam, graded by severity. Select any drug for the full evidence-based detail.

122 major interactions. These combinations can be clinically significant — best avoided, or used only with close professional supervision. Always check with your pharmacist before combining them with Piracetam.

Don’t want to scroll the list? Just ask.

Tell us the medications you take and we’ll check each one against Piracetam using our pharmacist-reviewed interaction data.

AI summaries are generated from our Piracetam interaction data for education only — always confirm with your pharmacist. How we use AI

2,830 drugs

Read The List Like a Pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
Probable. Interaction 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.
Possible. 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
Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
Each drug listed above links to the full report for that exact Piracetam combination — clinical detail, likelihood, evidence level, and citations.
Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

The big picture

The kinds of drugs Piracetam affects

Every type of medication (drug category) Piracetam is known to interact with. Open any category for the detail — or search your exact drug in the checker above.

All 1 drug category Piracetam interacts with

Anticoagulant/antiplatelet Drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, concomitant use of piracetam and anticoagulant/antiplatelet drugs might increase the risk of bleeding.
Preliminary clinical research shows that a single dose of piracetam inhibits platelet aggregation.

Likelihood Probable Evidence B

Monograph

Piracetam: Uses, Safety & Side Effects

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Reviewed July 2026 ·

The bottom line

Piracetam is a synthetic 'nootropic' drug studied mainly for cognitive decline, myoclonus, and certain neurological conditions, but evidence for boosting memory in healthy people is weak. It is a prescription medicine in many countries and is not an approved drug or dietary supplement in the United States, so quality and safety of products sold online vary. Talk to a doctor or pharmacist before using it.

Part used: Synthetic compound (not plant-derived)
Common forms: Tablets, capsules, powder, oral solution

People commonly use it for

Memory and cognition ('nootropic')
Cognitive decline and dementia
Myoclonus
Dyslexia in children
Vertigo

Popular and traditional uses — not proof it works. See “Uses & effectiveness” below for the evidence.

Safety at a glance

OverallUse caution

It is a drug, not a true dietary supplement, and is unapproved in the U.S. with variable product quality.

PregnancyBest avoided

There is not enough safety data, so avoid use during pregnancy.

BreastfeedingInsufficient reliable information

Insufficient reliable information available; avoid using.

Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center). Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

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Overview

Piracetam is a man-made (synthetic) compound and is the original member of a group of drugs called 'racetams.' It is not made from a plant. People often describe it as a 'nootropic,' meaning a substance claimed to support memory, focus, or thinking.

In many countries, including parts of Europe, piracetam is sold as a prescription medicine and is used for certain brain and nerve conditions. In the United States, it is not approved by the FDA as a drug and does not meet the legal definition of a dietary supplement, even though it is sometimes sold online. Because of this, products labeled as piracetam may not be tested for purity or strength.

How it works

The exact way piracetam works is not fully understood. Researchers believe it may make cell membranes in the brain more flexible, which could help brain cells communicate and use energy more easily.

It may also affect chemical messengers (neurotransmitters) and could influence blood flow and how cells use oxygen. Many of these ideas come from laboratory and animal studies, so it is not certain how much they apply to people. Piracetam is chemically related to a natural brain chemical called GABA, but it does not appear to act directly on GABA receptors.

Effectiveness

Does Piracetam work?

Here’s what the research actually shows for each use — graded by Natural Medicines and reviewed by Dr. Brian Staiger, PharmD.

Evidence overview · 26 uses evaluated

6 Possibly effective 20 Insufficient evidence

How to read these evidence grades

Natural Medicines’ 7-point scale. We show each rating’s label word-for-word.

1EffectiveStrong, consistent evidence it works.

2Likely EffectiveGood evidence, though not yet conclusive.

3Possibly EffectiveSome evidence suggests a benefit.

4Possibly IneffectiveSome evidence it may not help.

5Likely IneffectiveFairly strong evidence it doesn’t help.

6IneffectiveStrong evidence it doesn’t work.

7Insufficient Reliable Evidence to RateToo little research to say either way.

Possibly Effective Breath-holding attacks