On a chemical level, Indica and Sativa strains are different in their composition of the cannabinoid content, as well as in the balance of other compounds, such as terpenes and flavonoids.
Sativa strains usually show a high THC content and low CBD content, while indica strains tend have a lower THC content, and a somewhat higher CBD content.
Today, thanks to current breeding techniques, both Indica and Sativa strains can be found with varying THC/CBD cannabinoid concentrations.
In general, the effect of sativa strains is often described as a strong and uplifting head high.
The use of cannabis to combat nausea isn’t a new phenomenon. The United Kingdom (UK) Department of Health administered a synthetic variant of THC to battle nausea back in 1983 and since then, patients have found that smoking marijuana is far more effective than other medicinal capsules.
The reason behind this is simple. According to the American Cancer Society (ACS), when taken orally, THC takes hours to absorb fully and therefore can not provide immediate relief. Smoking or vaporizing cannabis allows the THC to enter the bloodstream much faster and as a result it will inhibit nausea in your brain and settle your stomach within moments.