CBD for panic attacks: what studies say and how much to take
A panic attack lasts for several minutes and can be mistaken for a heart attack. Check what has really been studied regarding CBD and anxiety, and why no one has established dosages.
A panic attack starts suddenly, peaks within a few minutes, and usually subsides in several. During this time, it can resemble a heart attack: pressure in the chest, shortness of breath, palpitations, tingling in the hands. Therefore, the first such episode is not a matter for a supplement, but for a visit to a doctor who will rule out a cardiac cause. The second thing to say right away: panic disorder has a treatment with documented effectiveness, namely psychotherapy and medications prescribed by a doctor. CBD is not a substitute for them, and no study has shown that it is. Below, we have gathered what has actually been studied, and the reason why there is no honest answer to the question of dosage today.
KEY INFORMATION
• 13.2% of people have experienced a panic attack at some point, but 12.8% of them meet the criteria for panic disorder (de Jonge et al., Depression and Anxiety, 2016).
• The only randomized trial of CBD in patients with panic attacks showed no advantage over placebo (Kwee et al., 2022).
• Positive results in humans come from acute situations and mainly from social phobia, after doses of 150-600 mg at once.
• No one has established consumer dosing.
• Chest pain and shortness of breath require medical evaluation first, not oil.
Can CBD replace the treatment of panic attacks?
No, and there is no data to support that. The only randomized study conducted in patients with panic disorder was unfavorable to CBD: adding 300 mg to exposure therapy did not improve outcomes compared to placebo (Kwee i in., European Neuropsychopharmacology, 2022).
This finding has practical implications. If you have a diagnosed panic disorder and are taking medications, do not stop them to switch to oil. With benzodiazepines, sudden discontinuation can be dangerous in itself, and with antidepressants, it usually means a relapse of symptoms after a few weeks. If you are undergoing psychotherapy, oil will not shorten or facilitate it.
CBD is sold in Poland as a supplement or cosmetic, not a medicine, and this is not a formality. The manufacturer does not have to demonstrate efficacy for any indication, and the label does not contain a therapeutic dose because no one has registered one for anxiety. Therefore, treat the oil as something you can at most add to treatment after discussing it with a doctor, not as the first move after the first attack. The first move is diagnosis.
What does a panic attack look like and when should a heart attack be ruled out?
A panic attack escalates rapidly, peaks within a few minutes, and usually subsides in several. The problem is that without examination, you cannot distinguish it from an acute cardiac event, as the symptom set can be the same: chest pain, shortness of breath, palpitations, dizziness, tingling in the limbs.
The first episode in life requires medical evaluation, if only to perform an ECG and close the topic. This is not excessive caution: until someone checks the heart, the diagnosis of a panic attack remains a guess.
| Signal | Typowe dla napadu paniki | A reason to seek urgent help |
|---|---|---|
| Przebieg w czasie | peaks after a few minutes, subsides in several | symptoms last longer than 20 minutes or escalate |
| Pain in the chest | pressure that subsides along with anxiety | radiates to the shoulder, jaw, or back |
| Shortness of breath | subsides after normalizing breathing | persists despite calmness, cyanotic lips |
| Kontekst | kolejny epizod o znanym przebiegu | first time in life, age over 40, history of heart disease |
A panic attack itself is common, but the disorder is much rarer. In a study of 142,949 people from 25 countries, 13.2% of respondents had experienced a panic attack at some point, but only 12.8% met the criteria for panic disorder, which translates to 1.7% of the population, with a median age of onset at 32 years (de Jonge i in., Depression and Anxiety, 2016).
What has documented effectiveness in panic disorder?
Two things: psychotherapy and medications prescribed by a doctor. In a network meta-analysis by Cochrane, covering eight forms of psychotherapy, cognitive-behavioral therapy was the most studied and often performed better than the others (Pompoli i in., Cochrane Database of Systematic Reviews, 2016). The same work states that the disorder affects 1 to 4% of people during their lifetime.
The authors of this work are cautious. They write that there is no clear high-quality evidence of the superiority of any psychotherapy over others, and effect sizes can be small. Cognitive-behavioral therapy thus wins mainly because it has been studied the most extensively, not because the difference compared to competitors is huge. This is still an incomparably stronger position than that of CBD today.
On the pharmacology side, a network meta-analysis published in BMJ compared 87 studies involving 12,800 participants (Chawla i in., BMJ, 2022). Selective serotonin reuptake inhibitors achieved remission more often than placebo, with a relative risk of 1.38 and a confidence interval of 1.26-1.50; sertraline and escitalopram performed the best. Adverse effects occurred more frequently with them than with placebo, with a relative risk of 1.19, compared to 1.76 for benzodiazepines and 1.79 for tricyclic antidepressants. Based on this, the authors indicated this group as the best compromise between the chance of remission and risk.
The authors add a caveat worth knowing before talking to a doctor: 86 out of 87 studies had methodological limitations or a high risk of error, so the certainty of these conclusions was assessed as moderate to very low. However, this is still the best available material, and CBD does not even have that.
Has anyone studied CBD in people with panic attacks?
Yes, once, and the result was negative. In a Dutch randomized study, 80 patients resistant to previous treatment, with panic disorder with agoraphobia or social phobia, received 300 mg of CBD orally (39 people) or placebo (41 people) before each of the eight weekly exposure therapy sessions.
No differences were found in anxiety questionnaire results either in the whole group or separately in each diagnosis, both halfway through treatment and after its completion, as well as after 3 and 6 months of observation. Contrary to the authors' hypothesis, CBD did not accelerate the early response to therapy (Kwee i in., European Neuropsychopharmacology, 2022).
The same team then looked at fear conditioning in 69 patients from this trial. CBD reduced the expectation of an aversive stimulus under weak and ambiguous threat, but did not improve the extinction of fear (Kwee i in., Psychopharmacology, 2024). One result from this study deserves a separate mention: in individuals taking antidepressants, the re-extinction of perceived fear was worse in the CBD group than in the placebo group, and in women from this subgroup, CBD disrupted the learning of the safety signal. The authors call this a signal for further investigation, not evidence of harm, but it is precisely this group that most often reaches for the oil on their own.
Earlier in the experiment involving 48 individuals divided into three groups, 32 mg of CBD administered after the extinction session improved the retention of extinguished fear, while the same 32 mg given before the session had no effect (Das i in., Psychopharmacology, 2013). In patients, this laboratory effect did not translate into therapy outcomes. The rest of the material concerns animals, such as studies on panic responses in rats and mice (Hernandes i in., Behavioural Brain Research, 2023).
What exactly has been studied in humans regarding CBD and anxiety?
Almost all positive results come from a single dose given before a specific stressor, most often before a simulated public speaking event, and most often in people with social phobia. This is a different situation than an unprovoked panic attack, which comes without warning.
A reference point for the entire field is a study in which 24 previously untreated patients with social phobia received 600 mg of CBD or placebo one and a half hours before the test. The group receiving CBD reported less anxiety, less discomfort, and fewer negative thoughts about their own performance (Bergamaschi et al., Neuropsychopharmacology, 2011). An earlier imaging study included 10 patients with the same diagnosis after a dose of 400 mg (Crippa i in., Journal of Psychopharmacology, 2011), and in 15 healthy men, 600 mg of CBD altered brain response to faces expressing fear (Fusar-Poli i in., Archives of General Psychiatry, 2009).
However, the most interesting experiment involved three doses. In 57 healthy men, 150, 300, and 600 mg were compared with placebo in the same test. Only 300 mg reduced anxiety, while the other doses did not differ from placebo, resulting in a dose-response curve shaped like an inverted U (Linares i in., Brazilian Journal of Psychiatry, 2019).
How much CBD to take for panic attacks?
It is impossible to provide a dose because no one has established it. There is no dosing study of CBD for panic attacks, so any number circulating on the internet is either a guess or taken from trials on a completely different issue. The title of this article promises an answer, and the honest answer is: there is no such dose.
This is best illustrated in the comparison. The table below is not a dosing plan, but a record of who was given what in human studies. No entry pertains to interrupting or preventing panic attacks.
| Study | Kto i ilu | Co podano | Outcome |
|---|---|---|---|
| Kwee 2022 | 80 treatment-resistant patients, panic disorder with agoraphobia or social phobia | 300 mg before each of the 8 therapy sessions | No difference compared to placebo |
| Linares 2019 | 57 healthy men | 150, 300 albo 600 mg jednorazowo | Anxiety was reduced only by the middle dose |
| Bergamaschi 2011 | 24 untreated patients with social phobia | 600 mg in a single dose | Less anxiety during performance |
| Crippa 2011 | 10 patients with social phobia | 400 mg in a single dose | Less anxiety, changes in cerebral blood flow |
| Shannon 2019 | 72 outpatient clinic patients, without a control group | Preparat dodany do dotychczasowego leczenia | Decrease in anxiety in 57 individuals, no comparison |
The scale of these doses has no equivalent on store shelves: trials administered from 150 to 600 mg at once, while an entire 10 ml bottle of oil contains from 500 to 2000 mg depending on the concentration. Therefore, one dose from the study is a significant portion of the packaging, not a serving from the label. Increasing the portion is not a shortcut, as in a test of three doses, the highest did not work. A separate issue is the duration of use: a review of all literature states that data from human studies are limited to single doses, and chronic dosing has been studied in few works (Blessing et al., Neurotherapeutics, 2015). Popular recommendations like '50 mg daily for eight weeks' therefore lack support from any experiment.
Why are reports on the effectiveness of CBD often misleading?
Because the two most frequently cited pieces of evidence are not what they seem. Shannon's work and colleagues is a retrospective review of psychiatric outpatient charts, without a control group and without randomization, in which the preparation was an addition to the existing treatment. Of the 103 reviewed charts, 72 were included in the analysis; anxiety decreased in the first month in 57 individuals, or 79.2%, but there was nothing to compare it to (Shannon i in., The Permanente Journal, 2019).
The second experiment shows how much expectation alone can do. Forty-three adults were given sublingual hemp seed oil with no trace of CBD, once being told it contained CBD and once that it did not. Those convinced that CBD has anxiolytic effects reported less anxiety in the session with the supposed CBD; there was also increased drowsiness and changes in heart rate variability (Spinella i in., Psychopharmacology, 2021).
Additionally, there's the arithmetic of the seizure itself. Since the episode resolves in about fifteen minutes, whatever you take during it will coincide with the alleviation of symptoms and will be remembered as what helped. We've noticed that this is how most opinions attributing the cessation of seizures to oils sound. However, a single observation cannot distinguish the effect of the substance from the natural course of the attack, and that's what placebo studies are for.
How does CBD interact with anxiety medications?
Through liver enzymes. CBD interacts with CYP3A4 and CYP2C19, which the body uses to break down some psychiatric medications, as well as with P-glycoprotein responsible for their excretion, so the potential for interactions with chronically taken medications is high (Brown i Winterstein, Journal of Clinical Medicine, 2019). With benzodiazepines, such as alprazolam or clonazepam, this may increase the concentration of the drug in the blood. With escitalopram and sertraline, an interaction through the same pathway is possible.
The same work reminds us that CBD also has its own profile of side effects, depending on the dose. These occurred in nearly half of the users, with the most common being an increase in aminotransferase activity, drowsiness, and sleep disturbances. Drowsiness is particularly significant here, as it adds to sedation after benzodiazepines.
The practical conclusion is simple. Do not change the doses of medications prescribed by your psychiatrist on your own and do not suddenly stop benzodiazepines, as withdrawal syndrome can be more dangerous than anxiety itself. If you want to try the oil, inform your treating physician before you start, not after the fact. Also, note the date of introduction and the size of the portion, so that you can later relate changes in well-being to a specific moment, rather than to an impression from a month ago.
More broadly about how CBD behaves in polytherapy, we discuss in the article o interakcjach CBD z lekami, and about anxiety without panic attacks in the text CBD for neurosis and anxiety..
Frequently Asked Questions
Does CBD help with panic attacks?
There is no study that has shown this. The only randomized trial in patients with panic disorder and agoraphobia tested 300 mg of CBD added to exposure therapy and found no advantage over placebo (Kwee et al., European Neuropsychopharmacology, 2022). Positive results pertain to a different issue: acute fear of public speaking, mainly in individuals with social phobia.
How much CBD to take for panic attacks?
No one has established the dose, and it cannot be stated honestly. Studies on anxiety used 150, 300, 400, or 600 mg at once, but each of them addressed a different issue than a panic attack. In the test by Linares et al. from 2019, only 300 mg worked, while 150 mg and 600 mg did not differ from placebo.
Does CBD work during a panic attack?
There is no evidence to suggest that. A panic attack builds up in a few minutes and usually subsides in several, so anything you take during it will coincide with the natural resolution of symptoms. Oral CBD takes several minutes to absorb, and there are simply no studies on interrupting a panic attack.
Can CBD replace cognitive-behavioral therapy?
No. Cognitive-behavioral therapy has been the most studied of the eight psychotherapies compared in a Cochrane network meta-analysis and has often performed better than the others (Pompoli et al., 2016). CBD has not had a single positive study in patients with panic attacks, so replacing one with the other means giving up treatment for the unknown.
Does CBD interact with anxiety medications?
Yes. CBD affects liver enzymes CYP3A4 and CYP2C19, which break down some psychiatric medications (Brown and Winterstein, 2019). With alprazolam and clonazepam, this may increase the concentration of the drug, and the drowsiness reported with CBD alone adds to sedation. Inform your psychiatrist before adding anything to your treatment.
Does a higher dose of CBD produce a stronger effect?
No. In the study by Linares et al. from 2019, 600 mg did not differ from placebo, although 300 mg was effective, so the dose-response curve has the shape of an inverted U. In an experiment where participants were given oil without CBD, the mere belief that they had taken CBD was associated with greater drowsiness (Spinella et al., 2021).
If you still want to try the oil as an adjunct to treatment, in the u Bucha store you will find only CANNOVA brand oils in the section hemp oils. None of them is a medication for panic attacks and will not replace a visit to a specialist.
This article is for informational and educational purposes only and does not constitute medical advice. Before starting to use hemp or CBD for therapeutic purposes, consult your doctor, especially if you are taking other medications, are pregnant, or breastfeeding.
Author: Michał Waluk · Opublikowano: 2026-06-08 · Aktualizacja: 2026-08-14
