Cannabis Science Receives FDA Industry Guidelines for Mapping Out Its Initial Drugs Offerings for FDA Submission and Testing

July 28, 2009

SAN FRANCISCO, CA -- (MARKET WIRE) -- 07/28/09 -- Cannabis Science Inc. (OTCBB: CBIS), an emerging pharmaceutical cannabis company, is pleased to report that the FDA has provided the Company with documentation to assist the Company to review and plan its initial applications to get its first drug into formal testing.

Cannabis Science, Inc. President & CEO Dr. Robert Melamede stated, "After speaking directly with the FDA discussing our products and initiatives I was pleasantly surprised with the hands on approach they have with helping us map our path to get our products into testing. We have a ways to go, but I am very optimistic that we have an opportunity to have more than one product in testing and trials at the same time. We have an exciting new initiative we plan to announce shortly and I would like to thank our current and future shareholders for helping to make this happen."

Cannabis Science H1N1 Swine Flu Formulation:
We now know that the endocannabinoid system plays a critical role in maintaining human health. The human body produces Endocannabinoids on demand when they are needed. They help restore homeostasis (biochemical balance). The Cannabis plant produces Phytocannabinoids. When the human body has endocannabinoid deficiencies, it cannot effectively restore the healthy biochemical state needed to counter a particular illness. Phytocannabinoids from the Cannabis plant can replace the deficient endocannabinoid activity in the human body to restore a health-promoting level of cannabinoid activity. Cannabis Science will test its cannabis extract lozenge with FDA guidance and oversight to determine if it will reduce ARDS-associated deaths from both the Avian and Swine influenza infections.

H1N1 Swine Flu:
According to the CDC (http://www.cdc.gov/flu/avian/) the Avian flu (H5N1) has a 63% mortality rate. Unfortunately, the Swine flu, while causing death at a much lower rate than the Avian flu, appears to also result in death via a similar mechanism. The common cause of death with these strains is organ failure, especially as seen in the lungs with the development of Adult Respiratory Distress Syndrome (ARDS). ARDS is caused by an excess immune-generated inflammatory response that leads to apoptosis (cell death) and subsequently to organ failure. The Company's approach will mimic how the human body uses endocannabinoids (cannabinoids that occur naturally in the body) to regulate immune activity and cell survival, by regulating inflammatory biochemistry. Excessive inflammatory responses are associated with numerous disease states including autoimmune diseases, neurological imbalances, and cardiovascular disease. Phytocannabinoids provide a natural means to supplement illness-specific endocannabinoid deficiencies.

About Cannabis Science, Inc.
Cannabis Science, Inc. is at the forefront of medical marijuana research and development. The Company works with world authorities on phytocannabinoid science targeting critical illnesses, and adheres to scientific methodologies to develop, produce, and commercialize phytocannabinoid-based pharmaceutical products. In sum, we are dedicated to the creation of cannabis-based medicines, both with and without psychoactive properties, to treat disease and the symptoms of disease, as well as for general health maintenance.

This Press Release includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Act of 1934. A statement containing works such as "anticipate," "seek," "intend," "believe," "plan," "estimate," "expect," "project," "plan," or similar phrases may be deemed "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Some or all of the events or results anticipated by these forward-looking statements may not occur. Factors that could cause or contribute to such differences include the future U.S. and global economies, the impact of competition, and the Company's reliance on existing regulations regarding the use and development of cannabis-based drugs. Cannabis Science, Inc. does not undertake any duty nor does it intend to update the results of these forward-looking statements.

Cannabis Science Inc.
Dr. Robert J. Melamede
President & CEO
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www.cannabisscience.com
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