The phrase "are frequently abused" is correct and usable in written English.
It can be used to describe a situation where something is often misused or mistreated.
Example: "Many vulnerable populations are frequently abused in various social systems, highlighting the need for reform."
Alternatives: "are often mistreated" or "are regularly exploited."
Adults with intellectual and developmental disabilities are frequently abused in dating and partnered relationships.
Inhalants, which are neurotoxic central nervous system (CNS) suppressants, are frequently abused by young adults.
... [L]axitives are frequently abused by people with eating disorders; a reported 10-60 percent of patients with anorexia or bulimia nervosa use laxatives as a method of weight control, leading to chronic diarrhea.
We are encouraged that Gov. Andrew Cuomo and legislative leaders appear to be nearing a deal on legislation implementing Mr. Schneiderman's idea for a real-time online database to keep track of prescriptions for controlled substances that are frequently abused.
Human rights campaigners are using Ms. Masih's case to renew calls for changes to the blasphemy laws, which date from the British colonial era and are frequently abused by powerful Muslim clerics to persecute religious minorities or to pursue grudges against fellow Muslims.
"Our analysis found that about 170,000 Medicare beneficiaries received prescriptions from five or more medical practitioners" for 14 types of drugs that are frequently abused, said Gregory D. Kutz, director of forensic audits and special investigations at the accounting office.
Beginning in the late 9th century, the doges were chosen by popular election, though the right was frequently abused during times of civil strife.
The effects of such poisoning can be widened because cough syrup is frequently abused by people who use it to get high.
Yet such tolerance is frequently abused by a production that juggles too many ill-considered ideas then treats the audience as an afterthought.
"Whilst I can't defer all the blame away from myself, I was barely out of my teenage years, and the consequence of this portrayal of me is that now I am frequently abused on social media," she said.
