Greetings. The $700 figure sounds like what a human dose would be. Thankfully, our friends are much smaller, so that human dose can be divided up many ways. My vet charges around $50 for a visit and lupron injection. That is a 100 microgram (mcg) 1-month depot. Lupron comes in 1-month and 3-month depot versions. As the name implies, the 3 month depot should last 3 months, and the 1 month lasts 1 month. Based on research I've seen, it's better to go with monthly 1-month depots, as the 3 month depot's effectiveness wears off towards the end of the period, allowing the hormones to start fluctuating. Kevin Farlee [Posted in FML 5743]