Find out how much and report it to the Doctor. It can be toxic it appears.
In “Travelers’ Malaria” By Patricia Schlagenhauf-Lawlor
under Neuropsychiatric Harm it mentions a similar case. Do a search for: Neuropsychiatric(page 122) once you find the book here http://books.google.com
One pill ea. week i do believe. Started dosage per Rx one week before travel. She took her 3rd (and last) dosage Thurs. or Fri.