This product doesn't cover heartworm. There wasn't a product which covered all 3 until recently. At the moment only Nexgard Spectra covers ticks, fleas and heartworm which is only approved by European and Australian regulators. It is waiting approval from FDA.

All products are well within expiry dates. Generally the items are manufactured about six months ago with a three year lifetime, so on average you have about 2.5 years before the expiry date is reached.

Advantix contains permethrin, an ingredient which repels and kills ticks, mosquitoes and sand flies for up to a month. Advantix is registered for the treatment and control of bush ticks, brown dog ticks and paralysis ticks. To control paralysis ticks Advantix should be applied every 2 weeks.

Advantage 11 is for killing the whole lifecycle of fleas and lice, whereas Advantix will also kill ticks as well as fleas. So they are not the same.