Memo Pezil Side Effects: Interactions & Warnings
Memo Pezil contains five ingredients. Three of them have documented drug interactions. Two are adaptogens that affect thyroid and mood medications. This guide breaks down the side effects by ingredient, the interactions that matter, and the groups that should avoid the bottle entirely.
Written and fact-checked by RecallPath Editorial Team. Last updated: . About our editorial process.
- Panax ginseng: Interacts with warfarin, blood pressure meds and antidepressants. Risk of bleeding and blood pressure changes.
- Rhodiola rosea: Mild MAOI activity. Avoid with SSRIs, MAOIs and thyroid medication.
- Bacopa monnieri: GI upset in the first two weeks. Avoid with thyroid meds and during pregnancy.
- Overall risk: Low for healthy adults not on prescription meds. High for anyone on blood thinners or antidepressants.
The five ingredients, safety by safety
Memo Pezil lists five active ingredients on the Supplement Facts panel. Each carries its own profile. Breaking them down separately is the only honest approach.
Panax Ginseng Extract (90 mg)
Ginseng is the most interaction-heavy ingredient in this formula. Published literature identifies potential interactions with warfarin and other blood thinners, blood pressure medications, diabetes medications, and certain antidepressants. Ginseng can also cause insomnia, headache and digestive upset in sensitive users.
The 90 mg dose is modest, but the interaction risk is not dose-dependent in a linear way. If you take any of the medications listed above, show the label to your doctor or pharmacist before starting.
Moderate risk due to drug interactionsRhodiola Rosea Extract (100 mg, 3% Salidroside)
Rhodiola has demonstrated mild monoamine oxidase inhibitory (MAOI) activity in some studies. This matters for anyone taking antidepressants, particularly MAOIs or SSRIs. The combination can theoretically cause serotonin syndrome or hypertensive crisis.
Rhodiola also affects thyroid hormone levels. Avoid it if you have hyperthyroidism, hypothyroidism, or take thyroid medication. Do not use during pregnancy or breastfeeding.
Common side effects include insomnia, dry mouth and dizziness. These are usually mild and fade after the first week.
Moderate risk due to MAOI activity and thyroid effectsBacopa Monnieri Extract (200 mg)
The most common issue is gastrointestinal. Mild stomach upset, bloating or loose stools appear in the first two weeks. Taking it with food usually fixes this.
Bacopa may interact with thyroid medications. The NCCIH notes that evidence for Bacopa in cognitive applications remains mixed and inconclusive. The 200 mg dose in Memo Pezil is below the 300 to 450 mg range used in most published memory trials. This keeps side effects low but also means the cognitive benefit, if any, may be modest.
Low risk; GI upset fades with foodL-Theanine (100 mg)
L-Theanine is generally well tolerated at 100 mg. Human EEG research has found that it increases alpha wave activity, a state associated with relaxed alertness. Side effects are rare at this dose. Some users report mild drowsiness. Do not combine with other sedatives without medical advice.
Low risk at 100 mgBranched Chain Amino Acids 2:1:1 (540 mg)
BCAAs are the largest ingredient by weight. They compete with aromatic amino acids — including tyrosine and tryptophan, the precursors to dopamine and serotonin — at the blood-brain barrier. This competitive dynamic makes the cognitive application of BCAAs more complex than straightforward support.
Published research specifically examining BCAAs in cognitive contexts is limited. For most healthy adults, BCAAs at 540 mg are well tolerated. GI upset is the most common complaint.
Low risk; limited cognitive researchDose context. Memo Pezil provides 200 mg bacopa. Most published memory trials used 300 to 450 mg. The 200 mg dose is 33% below the lower end of that studied range. This reduces side-effect risk but may also limit cognitive benefit.
Drug interactions that matter
If you take any of the following, show the Memo Pezil label to your doctor or pharmacist before you start:
- Blood thinners (warfarin, aspirin, clopidogrel): Panax ginseng increases bleeding risk. This is the most dangerous interaction in the formula.
- Blood pressure medication: Panax ginseng can affect blood pressure. Monitor closely if you take antihypertensives.
- Antidepressants (MAOIs, SSRIs, SNRIs): Rhodiola has mild MAOI activity. Theoretical risk of serotonin syndrome or hypertensive crisis.
- Thyroid medication: Both bacopa and rhodiola affect thyroid function. Avoid if you take levothyroxine or other thyroid drugs.
- Diabetes medication: Panax ginseng can affect blood glucose. Monitor closely if you take insulin or oral hypoglycemics.
- Sedatives or sleep aids: L-Theanine and bacopa can have mild sedative effects. Pairing with sleep medication may amplify drowsiness.
Who should skip Memo Pezil
People on blood thinners
Panax ginseng increases bleeding risk. The interaction is well documented. Do not take Memo Pezil without medical clearance if you use warfarin, aspirin therapy, or any anticoagulant.
People on antidepressants
Rhodiola’s MAOI activity creates a theoretical risk with SSRIs and MAOIs. The case reports are limited but the mechanism is real. Talk to your psychiatrist before combining.
People with thyroid conditions
Both bacopa and rhodiola affect thyroid hormone levels. If you have hyperthyroidism, hypothyroidism, or take thyroid medication, avoid this formula.
Pregnant or breastfeeding women
Human safety data for bacopa, rhodiola and ginseng in pregnancy is limited. The standard advice applies: avoid unless your doctor explicitly approves.
Anyone with surgery scheduled within two weeks
Stop any supplement with bleeding risk before surgery. Panax ginseng is the primary concern here. Standard pre-op protocol.
How to reduce side effects
Take it with food. This cuts GI upset from bacopa, ginseng and BCAAs by roughly half for most users.
Take it in the morning. Ginseng and rhodiola can interfere with sleep if taken after 2 p.m.
Start with one capsule. The label says two capsules per day. Sensitive users can start with one capsule for three days to test tolerance.
Do not stack. If you are taking another adaptogen, a separate bacopa product, or any nootropic blend, the combined dose may push you into side-effect territory. One bottle at a time.
The bottom line
Memo Pezil is low-risk for healthy adults not on prescription medication. The side effects are mild and predictable: GI upset from bacopa, insomnia from ginseng and rhodiola, mild drowsiness from L-Theanine. The real concerns are drug interactions, not toxicity.
If you take blood thinners, antidepressants, thyroid medication or diabetes drugs, check with your doctor first. The interaction profile is real and documented. Everyone else: take it with food, take it in the morning, and give it the full 12 weeks before you judge.
For the full ingredient breakdown, read our Memo Pezil review. For a comparison against the rest of the market, see Best Memory Supplements of 2026.
Frequently Asked Questions
Does Memo Pezil cause headaches?
Panax ginseng can cause headaches in some users, especially in the first week. The 90 mg dose is modest, but sensitive users may still feel it. Taking it with food and plenty of water helps.
Can Memo Pezil cause insomnia?
Yes. Ginseng and rhodiola are both stimulating for some users. Take Memo Pezil in the morning. If insomnia persists, stop and talk to your doctor.
Is Memo Pezil safe with blood pressure medication?
No. Panax ginseng can affect blood pressure. If you take antihypertensives, avoid Memo Pezil or monitor your blood pressure daily under medical supervision.
Can I take Memo Pezil with antidepressants?
No. Rhodiola has mild MAOI activity. The theoretical risk with SSRIs and MAOIs is real. Ask your psychiatrist before combining. Do not self-medicate.
Does Memo Pezil affect the thyroid?
Yes. Both bacopa and rhodiola affect thyroid hormone levels. Avoid Memo Pezil if you have hyperthyroidism, hypothyroidism, or take thyroid medication.
Should I stop Memo Pezil before surgery?
Yes. Stop any supplement with bleeding risk at least two weeks before surgery. Panax ginseng is the primary concern. Tell your surgeon everything you take.
Does Memo Pezil have a money-back guarantee?
The seller offers a 60-day return window. Start your return before day 60. Keep your order confirmation. We found no public reports of denied refunds within the window.
Why is the bacopa dose only 200 mg?
Most published memory trials used 300 to 450 mg bacopa. The 200 mg in Memo Pezil is 33% below that range. This keeps side effects low but may limit cognitive benefit. The NCCIH notes that evidence for bacopa remains mixed and inconclusive.
Sources and References
Need help choosing?
RecallPath does not sell supplements. We publish facts for readers over 40.
Email us