The defenses I've seen are less about free speech and more to the tune of "doctors can't possibly know everything, so you should ask them in case they haven't l

The defenses I've seen are less about free speech and more to the tune of "doctors can't possibly know everything, so you should ask them in case they haven't looked into it." Frankly, if you think a TV advert does a better job at informing you about medical research then your doctor, who spent tons to graduate and more still on continuing education to maintain a license, you probably need new doctor.