What is the correct dosage of CBD?

CBD Oil info

CBD is the active ingredient in the hemp plant. Products that contain CBD may have some health benefits, but may also pose risks.

The CBD market is growing at a rapid pace and research areas are expanding. However, there is still confusion about the laws, the way CBD is used, its safety and effectiveness.

CBD products are legal in the EU, although their legal status varies from country to country. In the Czech Republic, products with THC content up to 0.3% are legal and available.

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In this article, we will discuss the benefits of CBD, including research into what doses are safe and effective, as well as the potential risks of using CBD products.

Usage and dosage

The recommended dosage for using CBD is as follows:

The starting dose varies depending on the CBD content and the type of product. It is recommended to always start with smaller doses that can be divided throughout the day - for example 2 drops per day (capsules, nasal spray ...) and then increase according to individual feelings until you feel the desired effect. The appropriate dosage of CBD oil can also be calculated here.

Before using CBD products, a person should talk to a doctor about appropriate doses.

The dosage depends on the method of application, as well as on the CBD product.

Product types include:

  • cbd oils,
  • cbd capsules,
  • cbd tablets,
  • CBD nasal sprays.

Recently, a wider range of products containing CBD is available. These commodities include food, nutritional supplements, cosmetics, and pet products.

Research into CBD therapy is still in its infancy and much more research needs to be done by researchers to determine the benefits and risks of these products. It is important that scientists develop ideal doses of CBD that are safe and effective for any condition.

As a therapy, CBD oil has gained a lot of research interest.

So far, we have been interested in the fact that, as has already been proven in the study, has a beneficial effect on:

  • anxiety
  • fibromyalgia
  • migraine
  • menopause
  • weight loss
  • hyperactive disorder (ADHD)
  • depression
  • crayfish


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According to a World Health Organization (WHO) report, studies have shown that CBD oil may also have therapeutic effects in the following conditions:

  • Alzheimer's disease
  • Parkinson's disease
  • multiple sclerosis
  • Huntington's disease
  • hypoxia-ischemic injury
  • pain
  • psychosis
  • nausea
  • inflammatory diseases
  • rheumatoid arthritis
  • infection
  • inflammatory bowel disease
  • cardiovascular diseases
  • diabetic complications

Dosing Study

Since the FDA has only approved the use of CBD for certain forms of epilepsy, doctors know little about what dose people should take when using it for other reasons. As with any drug, the appropriate dose is that which provides a therapeutic effect and is well tolerated.

In clinical trials, scientists have used various oral doses of CBD ranging from 100 to 800 mg per day.

Some studies use even higher doses. According to the review, the patient reported an improvement in psychosis after taking 1200 mg per day for several weeks. In another study, people with schizophrenia reported benefits after increasing the dose to 40-180 mg daily for 4 weeks.

In a study of the effects of CBD in people with Parkinson's disease and psychosis, six participants showed a significant improvement in symptoms with a daily dose of 150 mg of CBD.

The following table shows the method of administration and dosage of CBD used by scientists to study their therapeutic effects on various diseases.

Health status Dose / per day Form of application
Anxiety 300-600 mg


Intestinal diseases 5 mg - twice a day


type 2 diabetes 100 mg - twice a day orally
Pain caused by cancer 50-600 mg


Parkinson's disease 75-300 mg


Huntington's disease 12 sprays per day

To determine if CBD is safe and to calculate an effective dosage, people should consult their doctor.

Factors that may affect dosage

Several factors can affect the dosage that people can take. Depending on the health condition or the reason a person is taking CBD, a different dose may be required.

Some people need high doses to control epilepsy, while smaller doses may be effective for anxiety.

Another factor that people should consider before using CBD is is the weight. Therefore, people with less weight should take lower doses than those who weigh more.

Alcohol and other central nervous system depressants can increase the sedative effects of CBD. People who use other medications that can cause drowsiness should avoid or take a low dose of CBD. Before mixing alcohol and other drugs with CBD, you should check with your doctor to see if it is safe.

Dosing in different forms of CBD should also be considered. The CBD capsule has a specific dose, but the dose of oral solutions varies by volume.

What doses are safe?

While data remains limited on the effects of using pure CBD, researchers suggest that it has a relatively low toxicity.

In monkeys, CBD does not affect physical function or behavior unless the animals receive doses greater than 30mg/kg orally every day for 90 days or 150mg/kg intravenously.

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In a human physical addiction study, scientists gave people 1500mg daily of CBD for 4 weeks. Study participants did not stop using after the 28-day trial period. Another study showed that doses up to 1500 mg per day were well tolerated.

The World Health Organization (WHO) also claims that people generally tolerate CBD well. It does not produce an "intoxicating feeling" and does not have the same potential for abuse as cannabis.

Possible side effects of CBD

Data on the safety of CBD is limited. Available data points to potential risks that people should consider before taking CBD for any reason.

Some side effects of CBD are obvious, including:

  • drowsiness or other changes in alertness,
  • indigestion such as diarrhea and decreased appetite
  • mood changes like irritability and frustration.


Several factors determine the amount of CBD a person can take, including the intended use and the weight of the person. While the evidence is still lacking, scientists have identified some medications that interact with CBD, which can also affect the dosage that can be tolerated.

Source: https://www.medicalnewstoday.com/articles/327518.php