Professors at Harvard Medical School will no longer be able to take industry money to speak for drug or medical device companies or accept gifts, travel or meals under a new conflict-of-interest policy announced Wednesday.

The medical school also took steps to separate, but not ban, industry financing and industry exhibits from Harvard’s postgraduate education classes.

And it reduced by half, to $10,000, the limit on how much a faculty member can be paid by a company whose product or invention is under study by the faculty member; the current limit is $20,000. Harvard is one of the few universities to impose such a cap.

The policy changes were recommended in March by a 34-member review panel and accepted this week by Dr. Jeffrey S. Flier, dean of the medical school. In a statement, Dr. Flier said the changes would be formally incorporated into school policies over the next year.