A pharmaceutical company tried to boost its sales by encouraging doctors to use its new drug LDL Control to treat

A pharmaceutical company tried to boost its sales by encouraging doctors to use its new drug, LDL Control, to treat high cholesterol. An important part of their sales pitch included paying for lavish dinners and weekend trips for the doctors and their families. The company also gave doctors expensive gifts if they prescribed a certain number of prescriptions of LDL Control each month. Is this an acceptable form of marketing or criminal behavior?