In this photo taken Thursday, May 30, 2013, Companion Cannabis, by Holistic Therapeutics, a Marijuana medicinal tincture for dogs and cats is seen at La Brea Compassionate Caregivers, a

 

              In this photo taken Thursday, May 30, 2013, Companion Cannabis, by Holistic Therapeutics, a Marijuana medicinal tincture for dogs and cats is seen at La Brea Compassionate Caregivers, a
In this photo taken Thursday, May 30, 2013, Companion Cannabis, by Holistic Therapeutics, a Marijuana medicinal tincture for dogs and cats is seen at La Brea Compassionate Caregivers, a 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)