Epilepsy

Medicinal cannabis and Epilepsy

Table of Contents

Medical cannabis for epilepsy

Treating epilepsy and other conditions that manifest with seizures using medical cannabis has been one of the major topics covered in the media surrounding medicinal cannabis. Witnessing some cases of children with epilepsy showing dramatic changes when prescribed medicinal cannabis formulations has been a driving force behind regulatory changes around the world.

Medicinal cannabis, specifically high cannabidiol (CBD) medical cannabis prescriptions are commonly utilised in cases of epilepsy. Many types of epilepsy are resistant to conventional pharmaceutical treatments, in these cases, medical cannabis may be able to offer an alternative where other medications have failed.

Data from Epilepsy Action Australia shows around 14% of individuals with epilepsy are utilising cannabinoid medicines to aid in managing seizures. Yet it is thought that standard medications fail at controlling seizures in more than 30% of epileptic patients. 

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Does medical cannabis improve epilepsy symptoms?

Different medical cannabis formulations include varying ratios of cannabinoids that may be beneficial for epilepsy patients. In saying that, CBD is the primary cannabis compound that exhibits anti-epileptic actions. The other major cannabinoid, THC, has not been shown to have any direct effect as an anti-epileptic. 

Despite this, it is thought that the addition of THC, and other minor cannabinoids, to CBD dominant medications, leads to what is called the entourage effect. The entourage effect is when cannabinoids act synergistically together to create a more profound effect than what any cannabinoid could do in isolation.


Can CBD oil help to reduce seizures in epilepsy?

CBD oil and other types of CBD medication delivery options such as patches or sprays have been shown to reduce seizure severity and frequency in numerous clinical trials over the past two decades. A great deal of the research into CBD oil for epilepsy has focused on childhood epileptic conditions that are commonly treatment-resistant, for example; Lennox-Gastaut and Dravet syndrome.

When reviewing epilepsy clinical trials it is found on average 40-60% of patients experience a 50% reduction in seizures. A smaller portion of people finds CBD oil can reduce their seizure frequency by 50-90%. It is important to note that CBD is not a cure for epilepsy, yet these are significant improvements especially for those patients who can experience hundreds of seizures a month.

In some cases, epilepsy patients have reported the complete absence of seizures when put on CBD medications. So far research tells of seizure freedom in around 2-5% of cases.

CBD doesn’t act only as an anti-epileptic or anticonvulsant, but also as a neuroprotective and antioxidant. This can mean that even if seizures are still experienced, CBD may be able to offer protection against the damage of the electrical storm that is ravaging the brain. The hope is that it may also potentially translate to changes to the quality of life, mood and motor skills of individuals with epilepsy.


What medicinal cannabis treatments are available for epilepsy?

Medical cannabis or CBD oil formulations are most commonly given to patients in the form of oil or spray delivered under the tongue. There are other types of medical cannabis delivery options available, such as patches, capsules and nebulised formulations, however, in terms of epilepsy, oils or sprays are most commonly used to ensure consistent doses and optimal absorption.


Are there side effects when treating epilepsy with medical cannabis?

Side effects of medical cannabis can involve drowsiness, dry eyes and gastrointestinal discomfort. In medical cannabis formulations containing THC, euphoria or intoxicating effects can occur depending on the dose of THC. While the effects of THC on children is not fully understood and is a concern for some parents, the damage enacted on the brain by severe and regular seizures can cause extreme damage to neurological functioning and behaviours

Many side effects can be avoided with a carefully laid out dosage regime determined by an experienced physician like those at CA Clinics. Otherwise, many patients and caretakers acknowledge that while side effects are common, the improvements in seizure control and quality of life balance out the discomfort of side effects. 

Is it safe for children with epilepsy to take medicinal cannabis?

When prescribing medical cannabis to a child with severe epilepsy that is not responding to normal medications, the risks and benefits must be weighed to determine the most effective and safe treatment.

There is no medication, pharmaceutical or otherwise, that can remove the causes of epilepsy. However, medical cannabis or CBD oil may aid in the prevention of neurological damage and reduction of seizures in both children and adults.

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