The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Cannabidiol, a Cannabis sativa constituent, as an antipsychotic drug
Open accessAbstract
A high dose of delta9-tetrahydrocannabinol, the main Cannabis sativa (cannabis) component, induces anxiety and psychotic-like symptoms in healthy volunteers. These effects of delta9-tetrahydrocannabinol are significantly reduced by cannabidiol (CBD), a cannabis constituent which is devoid of the typical effects of the plant. This observation led us to suspect that CBD could have anxiolytic and/or antipsychotic actions. Studies in animal models and in healthy volunteers clearly suggest an anxiolytic-like effect of CBD. The antipsychotic-like properties of CBD have been investigated in animal models using behavioral and neurochemical techniques which suggested that CBD has a pharmacological profile similar to that of atypical antipsychotic drugs. The results of two studies on healthy volunteers using perception of binocular depth inversion and ketamine-induced psychotic symptoms supported the proposal of the antipsychotic-like properties of CBD. In addition, open case reports of schizophrenic patients treated with CBD and a preliminary report of a controlled clinical trial comparing CBD with an atypical antipsychotic drug have confirmed that this cannabinoid can be a safe and well-tolerated alternative treatment for schizophrenia. Future studies of CBD in other psychotic conditions such as bipolar disorder and comparative studies of its antipsychotic effects with those produced by clozapine in schizophrenic patients are clearly indicated.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Krystal, J. H. (1994) · Archives of General Psychiatry · doi:10.1001/archpsyc.1994.03950030035004 · Cited by 3,330
Cannabidiol and (−)Δ 9 -tetrahydrocannabinol are neuroprotective antioxidants
Hampson, A. J., Grimaldi, M., Axelrod, J., & Wink, D. (1998) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.95.14.8268 · Cited by 850
Antianxiety effect of cannabidiol in the elevated plus-maze
Guimarães, F. S., Chiaretti, T. M., Graeff, F. G., & Zuardi, A. W. (1990) · Psychopharmacology · doi:10.1007/bf02244012 · Cited by 379 · cited 2×
“In the later study (24), the effective doses of CBD ranged from 2.”
Effects of ipsapirone and cannabidiol on human experimental anxiety
Zuardi, A. W., Cosme, R. A., Graeff, F. G., & Guimarães, F. S. (1993) · Journal of Psychopharmacology · doi:10.1177/026988119300700112 · Cited by 364
Cannabidiol inhibits the hyperlocomotion induced by psychotomimetic drugs in mice
Moreira, F. A., & Guimarães, F. S. (2005) · European Journal of Pharmacology · doi:10.1016/j.ejphar.2005.02.040 · Cited by 206
Self-citationEffects of cannabidiol in animal models predictive of antipsychotic activity
Zuardi, A. W., Antunes Rodrigues, J., & Cunha, J. M. (1991) · Psychopharmacology · doi:10.1007/bf02244189 · Cited by 191
Self-citationAgurell, S., Carlsson, S., Lindgren, J. E., Ohlsson, A., Gillespie, H., & Hollister, L. (1981) · Experientia · doi:10.1007/bf02085029 · Cited by 129
Reduced binocular depth inversion in schizophrenic patients
Schneider, U., Borsutzky, M., Seifert, J., Leweke, F. M., Huber, T. J., Rollnik, J. D., & Emrich, H. M. (2002) · Schizophrenia Research · doi:10.1016/s0920-9964(00)00172-9 · Cited by 108
Cited by
The Endocannabinoid System as an Emerging Target of Pharmacotherapy
Pacher, P., Bátkai, S., & Kunos, G. (2006) · Pharmacological Reviews · doi:10.1124/pr.58.3.2 · Cited by 2,077
Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects.
Russo, E. B. (2011) · British Journal of Pharmacology · doi:10.1111/j.1476-5381.2011.01238.x · Cited by 1,535
Safety and side effects of cannabidiol, a Cannabis sativa constituent
Machado Bergamaschi, M., Helena Costa Queiroz, R., Waldo Zuardi, A., & Alexandre S. Crippa, J. (2011) · Current Drug Safety · doi:10.2174/157488611798280924 · Cited by 558
Crippa, J. A. S., Derenusson, G. N., Ferrari, T. B., Wichert-Ana, L., Duran, F. L., Martin-Santos, R., Simões, M. V., Bhattacharyya, S., Fusar-Poli, P., Atakan, Z., et al. (2011) · Journal of Psychopharmacology · doi:10.1177/0269881110379283 · Cited by 535
Self-citationCannabis and anxiety: a critical review of the evidence
Crippa, J. A., Zuardi, A. W., Martín‐Santos, R., Bhattacharyya, S., Atakan, Z., McGuire, P., & Fusar‐Poli, P. (2009) · Human Psychopharmacology: Clinical and Experimental · doi:10.1002/hup.1048 · Cited by 509
Self-citation
Metadata
- Authors
- Zuardi, A. W., Crippa, J. A. S., Hallak, J. E. C., Moreira, F. A., & Guimarães, F. S.
- Venue
- Brazilian Journal of Medical and Biological Research
- Publisher
- FapUNIFESP (SciELO)
- Published
- 2006-04
- Volume
- 39
- Issue
- 4
- Pages
- 421-429
- ISSN
- 0100-879X (ISSN-L)
- OpenAlex
- W1995306046
- Cited by
- 402
- References
- 8
- FWCI
- 9.62
- Type
- journal article
- Language
- en
- Open access
- gold
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Cannabidiol, a Cannabis sativa constituent, as an antipsychotic drug. https://app.cochat.ai/papers/10.1590/s0100-879x2006000400001
- The paper
- Zuardi, A. W., Crippa, J. A. S., Hallak, J. E. C., Moreira, F. A., & Guimarães, F. S. (2006). Cannabidiol, a Cannabis sativa constituent, as an antipsychotic drug. Brazilian Journal of Medical and Biological Research. https://doi.org/10.1590/s0100-879x2006000400001
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.