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Brain Supplement Side Effects to Watch For
Brain supplement side effects depend on the ingredient. Common ones are headache, nausea, stomach upset and dizziness, while some ingredients add sleepiness, insomnia, sun sensitivity or bleeding risk. Stop and call your doctor if you have a reaction, and keep taking prescribed medicine.
By the MemoPryl label deskUpdated · 5 min read
What are the common brain supplement side effects?
Headache, nausea and stomach upset show up across most of the ingredients sold for memory and focus. Others are specific to one herb.
The table lists what the sources print for five ingredients. Six names are tied to MemoPryl on a sibling pack, including these five plus L-glutamine. That list is unconfirmed for your bottle, and no amounts are printed on any image we have.
| Ingredient | Side effects listed |
|---|---|
| Ginkgo | Dizziness, stomach symptoms, headache (NCCIH, Ginkgo); bleeding case reports (MSK, Ginkgo) |
| St. John's wort | Headache, nausea, dry mouth, sleepiness, stomach upset, sun sensitivity (MSK, St. John's Wort) |
| Phosphatidylserine | Upset stomach, gas, insomnia, headache, rash, mood changes, low blood sugar (Cleveland Clinic, Phosphatidyl.) |
| Bacopa | Nausea, cramps, stool changes; mildly sedating (StatPearls, Bacopa monnieri) |
| Carnitine, about 3 g a day | Nausea, vomiting, cramps, diarrhea, fishy odor (NIH ODS, Carnitine) |
Which side effects are serious?
Bleeding, seizures, severe stomach problems, allergic reactions and stroke-like symptoms are serious. FDA lists several of them as reasons to stop a product and report it (FDA, Report a Supplement Problem).
MSK describes ginkgo bleeding case reports and seizures in people who are predisposed or take drugs that lower the seizure threshold (MSK, Ginkgo). NIH says carnitine can cause seizures in people with seizure disorders (NIH ODS, Carnitine).
Unusual bleeding, a seizure, trouble breathing, a spreading rash, yellow skin or eyes, or stroke-like symptoms need urgent care. Call emergency services if severe.
Does the label list side effects?
A full label would. The MemoPryl images we have do not. They show a name, three claims and a capsule count, and nothing about warnings.
Tap the numbered spots to see what is printed and what is missing.
Tap a number to see what that part of the label says.
- Heading
'COGNITIVE SUPPORT FORMULA*'. The asterisk refers to the FDA statement, which this image does not show.
- Name
MemoPryl, with a TM mark, in a panel edged in gold. This version prints no maker line.
- Network art
A faint sketch of nodes and links. It is decoration, not an ingredient list.
- Claims
'Supports Focus*', 'Optimized Memory*' and 'Improves Mental Clarity*', and each one carries the FDA asterisk.
- Product type
'DIETARY SUPPLEMENT'. It is not a drug.
- Count
'30 Capsules'. The other bottle image says 60.
MemoPryl: capsules in 2, 3 or 6 bottlesRead the bottle · check medicines first · 60-day window (confirm)
See packsWhat should I do if I get a side effect?
Stop the supplement and call your doctor or pharmacist. NCCIH advises stopping and contacting your provider if you have side effects (NCCIH, Using Supplements Wisely).
Keep taking prescribed medicine as directed, and bring the bottle to the visit. You can also report the problem to FDA. Check with your doctor or pharmacist before you begin any supplement.
Thinking about MemoPryl?Check your medicines with a pharmacist first. The checkout confirms prices and the 60-day window.
Middle pack
3 bottles
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Get 3 bottlesLargest pack
6 bottles
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Get 6 bottlesUntil the seller confirms its list, prices stay as fill-in fields. The checkout shows the final total.
More on MemoPryl safety and medicine interactions.
FAQ01
Questions people ask about MemoPryl
Can brain supplements cause headaches?
Yes. Headache is listed for ginkgo, St. John's wort and phosphatidylserine by the sources we cite. If headaches start after a new supplement, stop it and tell your doctor or pharmacist.
Can a memory supplement cause stomach upset?
Yes. Stomach upset, nausea or cramps are named for several ingredients, including ginkgo, St. John's wort, bacopa and carnitine. Take only as the bottle directs and call a clinician if it persists.
Do supplement side effects go away when I stop?
Often they ease, but not always. Stop the product, note what you took and when, and call your doctor. Do not assume a mild sign is harmless if it keeps getting worse.
Who wrote this02
Written and reviewed by
Each page draws on the bottle images, the seller's product notes and linked NIH, FDA, FTC and peer-reviewed sources.
Last updated . See our editorial standards and how we check reviews. This website is run by MemoPryl USA retail, not by the manufacturer or the distributor of the bottle. We are paid a commission when you buy through our order links.
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Read the bottle you receive and go over your medicines with a pharmacist before you pick a pack. The checkout confirms prices and the guarantee terms.
- Order desk: +1 (302) 200-3480
- 60-day window (confirm at checkout)
- Ships from the U.S. unless the checkout says otherwise
