In this task, you will be given sentences in which your task is to recognize the name of the drug or medicine. Drugs are substances that change a person's mental or physical state. They can affect how your brain works, how you feel and behave, your understanding, and your senses. Although there might be several correct answers, you need to write one of them.

Q: Two infants developed hyperkalemia shortly after cessation of prolonged ACTH therapy for infantile spasms.

A: ACTH
****
Q: Disopyramide-induced heart block.

A: Disopyramide
****
Q: After ruling out a hydrotelluric source of fluorine, the patient's fluorosis was linked to chronic use of niflumic acid, following the publication in 1978 of the 2 previously reported cases affected by this drug.

A:
niflumic acid
****