In this photo taken Thursday, May 30, 2013, La Brea Compassionate Caregivers manager Megan Hanley smiles after drawing a dog for the a dog product: Companion Cannabis, by Holistic Thera

 

              In this photo taken Thursday, May 30, 2013, La Brea Compassionate Caregivers manager Megan Hanley smiles after drawing a dog for the a dog product: Companion Cannabis, by Holistic Thera
In this photo taken Thursday, May 30, 2013, La Brea Compassionate Caregivers manager Megan Hanley smiles after drawing a dog for the a dog product: Companion Cannabis, by Holistic Therapeutics, a Marijuana medicinal tincture for dogs and cats sold at the medical marijuana dispensary in Los Angeles Thursday, May 30, 2013. Stories abound about changes in sick and dying pets after they've been given marijuana. There is a growing movement, led by Los Angeles veterinarian Doug Kramer, to make it more widely available. Others, however, urge caution until there's better science behind it. (AP Photo/Damian Dovarganes)