Average expiry date is 2 to 2.5 years.

Yes we ship to California, All the products we currently sell are "over the counter" products in the country they are shipped from and no prescription is required.

The intent is to encourage and reward customers for scheduling their orders in advance. This feature can be cancelled or rescheduled at anytime without penalty.

One dose lasts a month so with June to Nov. (5 months) your prescribed dosage span, qty 1 X 6 pack or qty 2 X 3 packs would be needed. Yes, June would be an easy target because orders generally take 10 to 15 business/working days for delivery.

We do not have Revolution for dogs over 88lbs however we do carry Revolution Teal for dogs 44-88lbs. You can find our Teal line at the link below: http://goo.gl/MTlkZr