Cannabis Syrups Offer Anti-inflammatory Effects & Improved Stability

The anti-inflammatory qualities of hashish have been properly founded. [1] Even so, not significantly is identified about hashish syrups as an substitute process of offering cannabinoids orally. A team of scientists from the College of Benin, Nigeria, have shed light-weight on the efficiency and steadiness of hashish syrups. [2]

Strategies Made use of

The hashish syrup contained 100 mg/mL of a crude hashish extract, sucrose, aspartame, propylene glycol as a carrier, and ethylenediaminetetraacetic acid (EDTA), and sodium metabisulphite (SMBs) as stabilizers. These were being produced into strengths of 5. and 10. mg/mL in 50 mL.

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Stability was assessed less than ailments with accelerated temperatures. Anti-inflammatory action was evaluated applying paw edema induced by egg albumin in an animal product. The Reitman and Frankel colorimetric system was employed to assess the biochemical assay.

Final results

The crude hashish resin and syrup formulations brought on various levels of anti-inflammatory effects (suppressing paw edema) that was dose-dependent. The activity was, on the other hand, a lot more pronounced in the syrup formulations as as opposed to the crude extract. Apparently, propylene glycol, made use of as a carrier, noticeably amplified anti-inflammatory action.

The researchers hypothesized that “[t]he enhanced anti-inflammatory activity of the syrups about the crude extract could be partly attributed to the solubilizing electrical power, improved polar pathway for utmost absorption and favourable partitioning of the anti-inflammatory constituent(s) of the extract by propylene glycol.”

The stability of the syrups was identified by evaluating the original concentration with the closing concentration soon after degradation has occurred because of to stressful ailments. Sodium metabisulphite and EDTA enhanced the security of the syrups.

The degradation of cannabis makes thermodynamically unstable compounds that could be difficult to different. [3] This takes place following reactions causing decarboxylation and isomerization. In the process, THC and other unstable components could be shed. For that reason, stabilizers may perhaps be applied to prolong the shelf life of hashish syrups: 20-160 days in sodium metabisulphite-made up of syrup and an extra 2204 times in EDTA-made up of syrup.


This study exhibits that formulating a cannabis extract as a syrup increases the anti-inflammatory effects, in section from the propylene glycol added to the syrup as a carrier and also the cannabis extract itself thanks to THC and cannabinol (CBN). The degradation that takes place because of to publicity to stressful situations follows the initial-buy kinetic design. Stabilizers this kind of as EDTA and SMBs greatly enhance the balance of labile parts, thus raising the shelf existence by somewhere around 99%. The addition of SMBs and EDTA assist to prolonged shelf lifetime with out resulting in significant biochemical or haematological variations in the subjects. [2]


1- Nagarkatti P, Pandey R, Rieder SA, Hegde VL, Nagarkatti M. Cannabinoids as novel anti-inflammatory medications. Future Med Chem. 20091(7):1333-1349. [journal impact factor = 3.808; times cited = 272]

2- Obonga W, Nnadi C, Okafor S, Omeje E, Igbinnaduwa P, et al. Anti-inflammatory exercise and accelerated steadiness experiments of crude extract syrup of Cannabis sativa. Tropical Journal of Pharmaceutical Exploration. 201918(2): 295-301. [journal impact factor = 0.533; times cited = 0]

3- Barnett G, Chiang CW, Perez-Reyes M, Owens SM. Kinetic analyze of using tobacco marijuana. J Pharmacokinet Biopharm. 198210(5):495-506. [journal impact factor = 2.751; times cited = 30]