Viagra / Sildenafil Coupon (might just be US)

Hi -

Dr's office gave me a discount card today for up to $150 off Viagra.  Looks like you can use it up to 3 times.  Here's a link to the card I have:  https://www.viagra.com/savings-offer

Also they mentioned that the generic will be available soon.  I can't tell online when.

Thanks.
Annie