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Cbd oil for sps

Cannabis derivatives therapy for a seronegative stiff-person syndrome: a case report

What is known and objective: Stiff-person syndrome (SPS) is an uncommon and disabling disorder characterized by progressive rigidity and episodic painful spasms involving axial and limb musculature. SPS treatment is mostly based on benzodiazepines, baclofen, immunosuppressants and intravenous immunoglobulin. Cannabis derivatives [tetrahydrocannabinol (THC) and cannabidiol (CBD)] are available as an oromucosal spray (Sativex(®)), indicated as add-on treatment, for symptom improvement in patients with moderate to severe spasticity because of multiple sclerosis (MS). Our objective is to report a case of seronegative SPS successfully treated with THC-CBD oromucosal spray.

Case summary: We report a case of a 40-year-old man presenting with progressive muscle stiffness and intermittent spasms for 6-years. The diagnosis of stiff-person syndrome was based on the clinical features and neuroelectrophysiologic findings of continuous motor unit activity. Glutamic acid decarboxylase autoantibodies was absent in our patient, in both serum and cerebrospinal fluid (CSF). Cannabis derivatives oromucosal spray was introduced after a series of unsatisfactory traditional medical treatments. After 14 months treated with THC-CBD oromucosal spray, improvement was verified in the eight dimensions of the scale of SF-36 quality of life questionnaire.

What is new and conclusion: Clinical experience with cannabis derivatives in patients with multiple sclerosis is accumulating steadily, but there is no current literature about its efficacy for SPS. Because MS and SPS share some neurological symptoms such as spasticity and rigidity, it is thought that THC-CBC can be an option for SPS patient. Our case report suggests that THC-CBD oromucosal spray is an alternative treatment for patients with refractory SPS, and further validation is appropriate.

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© 2012 Blackwell Publishing Ltd.

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Cannabis – based medicinal products – potential drug interactions

There are a number of potential drug drug interactions with cannabis-based medicinal products and other medications or substances. Data suggests that CBD and THC act as enzyme inhibitors of cytochrome P-450 isoenzymes. Therefore caution should be taken when cannabis-based medicines are co-administered with any medications that are CYP inhibitors or inducers.

Cannabis-based medicinal products may also be susceptible to pharmacodynamic drug drug interactions. Clinicians should take into consideration the impact of cannabis based medicinal products on pharmacodynamics as doses of other medications may need to be adjusted.

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Due to the lack of experience with cannabis-based medicinal products there may still be undiscovered drug drug interactions not stated in the tables above. Different cannabis-based medicinal products will contain varied concentrations of THC and CBD which may impact on the DDIs seen. It is recommended that any suspected adverse reaction is reported via the Yellow Card Scheme.

For information regarding potential adverse events with CBD oil a specific Q&A has been published: Cannabidiol oil – potential adverse effects

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