racetam side effects

The Top 7 Racetams – Which One is Best?

David Tomen
Author:
David Tomen
Robert Iafelice, MS, RDN, LDN
Fact Checked:
Robert Iafelice, MS, RDN, LDN
12 minute read

Key Takeaways

  1. Dr. Corneliu Giurgea created the first racetam nootropic, Piracetam, discovering that it boosts cognitive abilities even in healthy people.
  2. All racetams are synthetic compounds, sharing a similar chemical structure, and are used for various neurocognitive disorders.
  3. Every racetam affects acetylcholine levels in your brain and needs to be taken with a quality choline supplement like Alpha GPC or CDP-Choline.
  4. The seven most popular racetams are Piracetam, Aniracetam, Coluracetam, Nefiracetam, Oxiracetam, Phenylpiracetam, and Pramiracetam, each having specific benefits such as improved cognitive function, reduced anxiety, memory enhancement, increased blood flow, etc.
  5. Each racetam has unique mechanisms of action, providing different benefits, hence, choosing the best one depends on your individual needs and requirements.

The very first racetam nootropic was created by Dr. Corneliu Giurgea at the Belgian-based pharmaceutical company UCB Pharma in the 1964.

Dr. Giurgea’s intention was to develop a calming-type drug for motion sickness. GABA is the calming neurotransmitter and Piracetam is a cyclic derivative of GABA.

But in spite of its connection with GABA, Piracetam didn’t show any behavior associated with this calming neurotransmitter. And cannot directly affect GABA receptors.

Instead, Dr. Giurgea discovered that Piracetam was able to boost cognitive abilities even in healthy people. The company launched this new ‘drug’ as ‘Nootropil’ in Europe in the early 1970’s.

How do racetams work?

Dozens of racetam derivatives have since been developed based on the original Piracetam. All synthetic compounds, racetams share a pyrrolidone nucleus at their chemical structure core.

Several of these racetams are now sold as prescription drugs in countries around the world. And are prescribed for dementia, Alzheimer’s disease, stroke recovery, ADHD, epilepsy and other neurocognitive disorders.

In the USA, racetams are available OTC without a prescription. But oddly enough are not classified as “dietary supplements”. Instead, the racetams described below are offered for “research” purposes only.

If you are new to the world of nootropics, and would like to try one of the racetams, but are not sure which one to choose, this post may help.

Below is a brief description of the 7 most popular racetams in use today. You don’t need to be a “nootropics expert” to use any of these compounds. But you need to know how to use them.

Each racetam has a live link through to a full review of that nootropic. Including what it is, where it came from, what it’s used for, how it works in your brain, clinical studies, dosage recommendations, side effects and where to buy them.

NOTE: Each of the racetams in this post affect acetylcholine levels in your brain. And must be taken with a quality choline supplement; Alpha GPC or CDP-Choline.

These racetams will not work if used without a choline supplement. And will likely produce a racetam-headache. More on dosage recommendations at the end of this post.

how to find the best nootropic racetams

Top 7 Racetam Nootropics

Piracetam for Cognitive function

Piracetam is considered the first true nootropic ever developed. It was synthesized by Dr. Corneliu Giurgea at UCB Pharma in 1964.

Since Piracetam is a cyclic derivative of the calming neurotransmitter GABA, Dr. Giurgea intended this first nootropic to be a calming type of drug for motion sickness. Turns out that’s not what happened.

Instead, Dr. Giurgea found that Piracetam as able to boost cognition and overall brain health even in healthy people.

Piracetam modulates AMPA and NMDA receptors in the brain which increases the effectiveness of glutamate. It improves the flow of acetylcholine (ACh) and sensitivity and density of ACh receptors.[i] And increases cerebral blood flow.

Many people new to nootropics start with Piracetam because it’s safe and has decades of clinical studies supporting its use. But many are often disappointed with Piracetam after trying it a couple of times.

Piracetam didn’t work for them because they don’t know how to use it.

It takes 2 – 3 weeks of consistent daily use of Piracetam before you notice the benefits. To counter this, experienced neurohackers suggest starting with an ‘attack dose’ of 3,000 mg of Piracetam 3-times per day for the first 3 days.

But once you start noticing the benefits of Piracetam, you should be in a better mood, less social anxiety, heightened creativity, improved verbal fluency and eventually you’ll notice your memory is better.

Recommended dosage of Piracetam is 1,600 mg 3-times per day.

I recommend: Cosmic Nootropic – Piracetam

Aniracetam to Reduce Anxiety Symptoms

Aniracetam is my favorite racetam. It’s a fat-soluble ampakine nootropic developed at F. Hoffmann-La Roche AG in the 1978. Aniracetam boosts brain cell signaling by increasing the effectiveness of glutamate which helps focus and concentration for improved cognitive performance.

Aniracetam affects the brain’s cholinergic system which helps release 200 – 300% more acetylcholine in your brain which helps with focus, clarity of thought, memory and recall. And it seems to affect dopamine and serotonin receptors in your brain as well.

Aniracetam distinguishes itself from the rest of the racetams by acting as an effective anxiolytic. Many who use this nootropic find that it helps reduce anxiety, depression and fear.

Some biohackers claim that Aniracetam is great for boosting creativity as it enhances productivity in the right brain hemisphere.

Recommended dosage of Aniracetam is 750 mg twice per day.

I recommend: Smart Nutrition – Aniracetam

Coluracetam for Memory Enhancement

Coluracetam is a fat-soluble racetam nootropic created by Mitsubishi Tanabe Pharma of Japan in 2005. It boosts your brain’s ability to convert choline to acetylcholine (ACh) through the high affinity choline uptake (HACU) process. Leading to better learning and memory.[ii]

And Coluracetam increases the effectiveness of glutamate in your brain resulting in better focus and concentration, and other forms of cognitive enhancement such as preventing memory loss.

Neurohackers use Coluracetam for the cognitive effects mentioned above. But prefer this racetam because it also enhances sound and color.

Recommended dosage of Coluracetam is 20 – 80 mg per day.

Higher dosages should be split into two smaller doses. One dose first thing in the morning and then again at noon.

what are the side effects of the drug racetam

Nefiracetam for Improved Memory Formation

Nefiracetam is a fat-soluble racetam nootropic developed by Daiichi Seiyaku in the 1990’s as a treatment for cerebrovascular disorders.

Nefiracetam potentiates nicotinic acetylcholine receptors. Boosting the release of GABA and glutamate. Producing a calming effect while improving neuroplasticity and boosting learning and memory, while preventing symptoms of cognitive decline.

Nefiracetam enhances signaling of GABA on GABAa receptors when GABA is too low. And has a suppressive effect when GABA is too high. Leading to stabilized mood and sociability. No mood swings!

One American study with 159 stroke patients found that 600 – 900 mg of Nefiracetam daily for 12 weeks produced a significant improvement in mood in the most severely depressed patients.[iii]

Nefiracetam also prolongs the opening of calcium channels. Keeping neurotransmitters active longer. Improving memory formation and long-term memory and recall.

Students report this is the best racetam for studying because when using Nefiracetam they have better attention span, motivation, and less apathy and mental fatigue.

Many users report cognitive benefits such as calm focus and being able to articulate thoughts, and improved speaking ability when using Nefiracetam.

And one of the coolest benefits are the visual effects when using Nefiracetam. It feels like your brain is processing a broader spectrum of what’s in your visual range. Nature and your surroundings look more vibrant and beautiful.

Recommended dosage of Nefiracetam is up to 900 mg per day.

Use smaller dosages like 400 mg once in the morning and another dose at noon.

Oxiracetam to Eliminate Brain Fog

Oxiracetam was the 3rd racetam nootropic and developed in 1977. It enhances choline-acetyltransferase (ChAT) in your brain which makes more acetylcholine. Leading to improved short-term and long-term memory. And eliminating brain fog.

Is Oxiracetam good for memory?Oxiracetam also increases the density of binding sites for neurotransmitters on AMPA receptors. Resulting in a stimulant-effect without any of the negative side effects associated with stimulants.[iv]

People who use Oxiracetam report that it

Oxiracetam report that it has profound effects in clearing brain fog and enhancing focus and motivation. Especially when learning new material or working through a tedious task.

And you should experience a significant improvement in recall. Reading is easier by giving you the ability to get through more pages faster and retain the information for later. Great for preparing for an exam or your next board presentation.

Oxiracetam also helps improve mood.

Recommended Oxiracetam dosage is 750 – 1,500 mg per day. Divided in two equal doses. One dose in the morning, and one in the early afternoon.

I recommend: Smart Nutrition – Oxiracetam

Is phenylpiracetam stronger than piracetam?

Phenylpiracetam for Increased Blood Flow

Phenylpiracetam was created by adding a phenyl group to Piracetam by Russian scientists in 1983. To boost the physical and mental performance of astronauts during space flight. It’s currently used by Russian cosmonauts on the International Space Station.

And it turns out that Phenylpiracetam is very effective in boosting athletic performance , such as increasing blood flow. It provides significant stimulatory effects and helps you resist cold. The World Anti-Doping Agency has banned Phenylpiracetam for athletes in the Olympics and other professional sports.

Phenylpiracetam increases the density of acetylcholine (ACh), NMDA, GABA and dopamine receptors in the brain. More receptors mean more binding sites for neurotransmitters that affect memory formation, cognition, sleep and mood.[v]

It increases blood flow in the brain which provides more oxygen and nutrients to brain cells boosting alertness, cognition, focus and mood.

And Phenylpiracetam helps reduce symptoms of anxiety, depression and fear without the type of side affects you get from antidepressants. Likely because it increases the density of receptors for acetylcholine (ACh), GABA and NMDA.

Phenylpiracetam also provides an ‘anti-convulsive’ action in the brain which has been shown to be an effective treatment for epilepsy and other cognitive disorders.

Many neurohackers say Phenylpiracetam is the strongest nootropic they’ve ever experienced. It’s highly bioavailable , easily passing through the blood-brain barrier, leading you to experience the effects within 30 minutes of taking it.

Recommended Phenylpiracetam dosage is 100 mg twice per day. One Phenylpiracetam dose in the morning, and one in the early afternoon.

I recommend: Cosmic Nootropic – Phenylpiracetam.

Pramiracetam for Focus and Concentration

Pramiracetam was first synthesized by scientists at Parke-Davis in the late 1970’s. Pramiracetam boosts high affinity choline uptake (HACU) which has a profound effect on the synthesis of the neurotransmitter acetylcholine (ACh). Helping cognition, memory, recall and focus.

Unlike some of the other racetams, Pramiracetam does not directly influence GABA, dopamine, norepinephrine, or serotonin in the brain. So is not a good choice if you’re looking to improve mood or anxiety issues.[vi]

Many neurohackers report that taking Pramiracetam quickly provides an intense increase in focus and for some even a boost in confidence.

It is reported to be great for intense, long study sessions. Or when you face logical, attention-based tasks where you need sharp focus.

Others report improved recall, fluidity of thought, and ease of verbal communication and numerical calculations.

Recommended Pramiracetam dosage is 250 – 400 mg up to 3-times per day. One dose in the morning, and one in the early afternoon, and if you’re doing a 3rd dose do it later in the afternoon.

I recommend: Cosmic Nootropic – Pramiracetam.

Which racetam is most effective?

Which racetam is best for you?

Each of the above recommendations in the racetam family share a pyrrolidone nucleus core. And have some similarities like boosting acetylcholine and modulating glutamate in your brain.

But each racetam also has a unique mechanism of action providing unique benefits. All are considered non-toxic and safe to use if you follow dosage recommendations.

If you’re just starting out and want something safe, you may want to try Piracetam. But you need a lot of it to work (i.e. several grams per day).

If you are a student, you may want to try Nefiracetam, Oxiracetam, or Pramiracetam.

Pramiracetam use is also associated with improved cognitive function as a supplemental treatment for traumatic brain injuries.

Aniracetam is a very effective anxiolytic and helps relieve anxiety and depression.

If you are an astronaut or athlete you may want to try Phenylpiracetam for the reasons detailed above. But DO NOT attempt using this nootropic if you are an Olympic athlete. And check your professional sports association to see if this racetam is on their “banned” list of substances just to be on the safe side.

And Coluracetam is worth trying if you’d like to see and hear the world in more vivid colors and sound.

But as I mentioned near the beginning of this post, each racetam nootropic must be dosed with Alpha GPC or CDP-Choline. Because each racetam affects acetylcholine levels in your brain.

Each of these racetams also stack well with Mind Lab Pro® and Performance Lab® Mind because each of these preformulated stacks contain Cognizin® (CDP-Choline).

Some of the above racetams are fat-soluble. You must take them with a healthy fat. Try a tablespoon of unrefined coconut oil to ensure absorption.

And finally, many of the above racetams are only available in certain countries like the USA as a nootropic that you can easily buy online. Many are sold as prescription drugs in countries around the world. Check your local regulations to see if they are available in your country.

Several racetams I detailed above are available from Cosmic Nootropic. The company also offers a bundle if you’d like to sample several different racetams including: Noopept, Piracetam, and Phenylpiracetam. Get that bundle here: Cosmic Nootropic – Bundle

As an Amazon Associate I earn from qualifying purchases. This post may also contain other affiliate links and I will be compensated if you make a purchase after clicking on my links.

[i] Stoll L., Schubert T., Müller W.E. “Age-related deficits of central muscarinic cholinergic receptor function in the mouse: partial restoration by chronic piracetam treatment.” Neurobiology of Aging. 1992 Jan-Feb;13(1):39-44. (source)

[ii] Takashina K., Bessho T., Mori R., Eguchi J., Saito K. “MKC-231, a choline uptake enhancer: (2) Effect on synthesis and release of acetylcholine in AF64A-treated rats.” Journal of Neural Transmission (Vienna). 2008 Jul;115(7):1027-35. (source)

[iii] Robinson R.G., Jorge R.E., Clarence-Smith K. “Double-blind randomized treatment of poststroke depression using nefiracetam.” Journal of Neuropsychiatry and Clinical Neurosciences. 2008 Spring;20(2):178-84. (source)

[iv] Nicoletti F., Casabona G., Genazzani A.A., Copani A., Aleppo G., Canonico P.L., Scapagnini U. “Excitatory amino acids and neuronal plasticity: modulation of AMPA receptors as a novel substrate for the action of nootropic drugs.” Functional Neurology. 1992 Sep-Oct;7(5):413-22. (source)

[v] Firstova Y.Y., Abaimov D.A., Kapitsa I.G., Voronina T.A., Kovalev G.I. “The effects of scopolamine and the nootropic drug phenotropil on rat brain neurotransmitter receptors during testing of the conditioned passive avoidance task” Neurochemical Journal June 2011, Volume 5, Issue 2, pp 115-125 (source)

[vi] Pavlík A., Benesová O., Dlohozková N. “Effects of nootropic drugs on brain cholinergic and dopaminergic transmission.” Activitas Nervosa Superior (Praha). 1987 Mar;29(1):62-5. (source)

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Join The Discussion - 132 comments

Sonal
October 8, 2021

Hi David ,

I love reading your book Head first . I was looking to introduce my 7yr old with autism on nootropics especially the racetam ones which help with learning and cognition. Is Piracetam best or Fasoracetam(adhd too) what dosages are best 800mg Nootropil ok ? Please help

    David Tomen
    October 8, 2021

    Sonal, clinical studies show the most success for Piracetam (https://pubmed.ncbi.nlm.nih.gov/17929164/) and Oxiracetam (https://link.springer.com/article/10.1007/s12640-020-00169-1) for autism.

    The study used 800 mg per day of Piracetam for that age group. But the Oxiracetam study was done with rats so we do not have the equivalent if used in a 7 yr. old. If we compared it to Piracetam the dose for Oxiracetam for this purpose would likely work out to be around 250 mg per day.

    But keep in mind you’ll have the most success if using the racetam with a choline supplement. Either Alpha GPC or CDP-Choline.

Adam Rolison
October 5, 2021

Hey David,

Which of the racetams, other than Aniracetam, are safe to take with Adderall (prescribed for ADHD)?

I have had hit or miss experiences with Aniracetam, so I want to try others. Piracetam could work but I just don’t like how much I would have to take per day & buy.

All the info available on combining amphetamines or methylphenidate with racetams is sorely lacking. And I have a feeling you can fill in a much needed (at least for those prescribed a stim for ADHD) gap of info on the internet!

Thanks so much!

Best,
Adam

    David Tomen
    October 6, 2021

    Adam, I suggest trying Oxiracetam and see if that works for you. Or you can try Noopept which I’ve had great success with. It’s lumped in with the racetams but is not truly part of the racetam-family of compounds.

Shaz Van Kann
August 21, 2021

Hi David,

What kind of daily Nooptropics would you recommend for someone who is about to undergoe some light form of Chemo and Radio Therapy Treatment and after an operation for a Tonsil Cancer?

    David Tomen
    August 23, 2021

    Shaz, my area of expertise is the human brain. For the rest of the body you’ll need to find someone else who has the answers.

Rico
August 11, 2021

David, Thank you for the informative posts.

Is it advisable and is there a benefit to adding both Oxiracetam and Phenylpiracetam with your ADD stack? If so should the Alpha GPC be increased?

Thank you.

    David Tomen
    August 12, 2021

    Rico, I would not recommend using both racetams but I’m more conservative than others in our community. The way I look at it is these are prescription drugs in some countries. And a doctor certainly would not write a script for both.

    But that’s must my opinion. These are considered non-toxic and safe just by the original definition of the word nootropic. If you try it you may need to increase your Alpha GPC dose because your are doubling the demand for acetylcholine in your brain by using both.

Bill
August 2, 2021

Hi David,

Love your site btw.
Do you have any info on fasoracetam?
Noticed one comment about it, however I don’t see a specific section on it.

Thanks for your time,
Bill

    David Tomen
    August 3, 2021

    Bill, I chose not to do a review of Fasoracetam because there is not enough clinical evidence supporting its use as a nootropic. We have some anecdotal evidence from users but no clinical proof detailing exactly how it works in humans.

Bryan
July 10, 2021

So I got a bundle of racetams at Nootropicdepot and I tried the Noopept, Oxiracetam, Aniracetam. I felt no difference with them. Not sure if Nootropic depot is selling fake stuff or what. I had my wife take them too and she felt nothing. I take 1 alpha GPC or 1 CDP Choline with it as well. What are your thoughts? Thank you

    David Tomen
    July 11, 2021

    Bryan, if you tested them one-at-a-time with a choline supplement AND you used Oxiracetam and Aniracetam with a healthy fat like unrefined coconut oil and you felt nothing then these nootropics are not for you.

      Bryan
      July 14, 2021

      I meant to say could these be fake from Nootropic Depot?

        David Tomen
        July 14, 2021

        Bryan, while I can’t vouch for Nootropics Depot it is unlikely that they would be selling fake supplements. Because it would damage their reputation and they would soon be out of business.

        But you can verify this yourself by asking them for a Certificate of Analysis for each of the supplements you got from them. That should tell you exactly what’s in each capsule or bag of powder you got from them.

anon
June 8, 2021

Which one of these substances is safe for me? I currently take wellbutrin, lexapro, and Mirtazapine

    David Tomen
    June 9, 2021

    Curtis, the racetams are not contraindicated with any of the meds you mentioned.

george
May 20, 2021

how about j-147? the curcumin deriative?

    David Tomen
    May 20, 2021

    George, what about it? J-147 is a drug under development by Abrexa Pharmaceuticals for Alzheimer’s. I do not see a relationship with any of the racetams which is what this article is about.

      GEORGE
      May 21, 2021

      Raelly Sorry about this!

      i wanted to post under the curcumin section.

      is it possible to provide me some infromation about this (j-147)

      i would be grateful.

      the say that it is good for mitochondria enchangement and it has results on cognitive functions also.!

      Again i am sorry for posting here.

      Love your work!

      Thanks.!

        David Tomen
        May 21, 2021

        George, there isn’t much information on this experimental drug. And most studies are animal studies and not in significant numbers of humans.

        I’ve made it my policy from the beginning of Nootropics Expert to focus on natural nootropic supplements. With very few exceptions. My intention is to make it simple for people who have cognitive problems to find solutions that are easily found at their local vitamin or health food store. No prescription required.

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