The Quebec Poison Control Centre says the number of reported cases of cannabis poisoning has more than tripled in the province since the drug was legalized last fall.

Symptoms of cannabis poisoning include elevated heart rate and blood pressure, anxiety, vomiting and in some cases psychosis, possibly necessitating hospitalization.

The centre says that from October through December, it recorded 89 cases. For the same period last year, the centre only recorded 25 cases.

Canadian medical professionals are moving away from the term "cannabis overdose" because of the close association with critical drug overdose causing death.

Now that the Israeli government has approved cannabis exports, the Tel Aviv Stock Exchange may be getting a new crop of medical-marijuana companies seeking a listing. In contrast to most of the speculative companies already trading on the exchange, the newcomers have a real industry track record.

The legalization of recreational marijuana across Canada in addition to several U.S. states has garnered a lot of attention as of late — and rightfully so.

Experts are forecasting that the Canadian market for recreational marijuana could reach as much as $10 billion annually within the next decade, and if you were to factor in the potential of a federally regulated U.S. market, that figure could literally go sky high (ahem).

But this Foolish writer has to wonder about the possibility that some of those same experts have been overlooking the role that a lesser-known substance — Cannabidiol, or “CBD” — could play in revolutionizing the way adults look at responsible cannabis consumption.

Canada’s cannabis legalization, while a historical event in the industry, hasn’t seen a particularly smooth transition over the past few months. Companies knew months in advance that demand for marijuana would be extreme once the substance became legal, yet despite best efforts from both private companies and regulators to ensure sufficient supply, chronic shortages have become routine problems in the country.

This is especially concerning for the Canadian government, which worries that is dispensaries don’t have enough cannabis to go around, people will instead turn to black market sources. However, Canada’s top politician in charge of cannabis legalization believes there is enough supply to go around in 2019.

“Cannabis is illegal in most countries,” reads an official Canada travel advisory warning citizens that if they happen to pack pot for their next foreign trip, the “Government of Canada cannot intervene on your behalf.”

Quarterly earnings results covering the post-recreational-marijuana-legalization period in Canada will flood the media in February, allowing the market to assess the performance of the industry players and to somehow refine expectations for the local cannabis market and the seemingly weakening medical cannabis segment.

High revenue-growth rates are backed into anything marijuana related today, as the nascent adult-use market is expected to catapult revenues and earnings for the pot industry going forward, but lower wholesale prices and excise taxes are hurting margins, yet the medical cannabis segment affords licensed producers (LPs) the opportunity to capture the full retail margins through direct sales to clients.

An independent cannabis retailer in Clarenville is closing shop after accusing suppliers of giving first dibs to larger corporate stores, along with a slew of other supply issues.

The manager of Puff Puff Pass Head Shop, one of six independent marijuana retailers in Newfoundland and Labrador, said it's impossible to compete in a market for an under-supplied product — especially when that product is being offered to corporate suppliers first.

"From our personal experience here, I know that at least two of the licensed producers have made special deals with the larger corporate sites," said manager Tina Greening.

"Right now, I have virtually nothing in stock … The Esso store here in my town got an entire shipment of product when I had nothing."

In the first six weeks of marijuana legalization Prince Edward Island had the highest per capita legal sales in the country, and P.E.I. Cannabis is taking that as a sign it's getting something right.

Statistics Canada added cannabis stores to its retail sales figures in November.

The report released last week shows P.E.I. Cannabis stores sold $2.1 million worth of product in the first six weeks of opening. That's $17.22 for every Islander aged 19 and over. The next highest per capita spending was in Nova Scotia, at $13.80 per capita.

Manitoba sales were not included in the report.

P.E.I. Cannabis director of operations Zach Currie likes what he sees in the report.

If you're nervous there could be a crackdown on recreational marijuana companies because marijuana remains illegal in the U.S. at the federal level, then medical marijuana stocks could be a better investment option. Most countries still prohibit recreational marijuana use, but laws allowing medical marijuana use are becoming increasingly common. For example, medical marijuana markets are thriving in Canada and Germany, and in the U.S., 33 states have passed laws supporting medical marijuana.

Medical marijuana may not be as big an opportunity as recreational marijuana, but it could still be worth tens of billions of dollars annually to the top stocks. Here's how investors can profit from marijuana as medicine.

Until late last year, Canadians could purchase legal medical cannabis through a licensed seller. None of those sellers, however, had a pharmacy as part of their operations.