Despite a pending legal challenge, recreational marijuana sales are on track to begin July 1.

The Nevada Department of Taxation plans to issue recreational retail licenses this week, according to spokeswoman Stephanie Klapstein.

Some of the approved retailers include medical marijuana dispensaries already operating in Las Vegas, like Sahara Wellness.

Business partner Brenda Gansallus said right now, many of their patients are elderly and dealing with serious health issues, like cancer or PTSD.

With an increased demand and new customers, Gansallus is stocking up to be sure there is plenty of supply left for patients.

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"We're coming up with a plan to make sure that those patients are taken care of whether they come in faster, or they know what they want, they can come in and get it, but we want to make sure the patients aren't forgotten in this whole process," Gansallus said.

As many as 25 medical dispensaries in the Las Vegas valley and four in Reno could begin sales as early as Saturday.