Representation and anti-malarial utilization. Perceptions and utilization of anti-malarials were found to be influenced by three main factors: perceived strength; ease of administration; and knowledge and understanding of appropriate dosing and causes of unsuccessful treatment. These factors were influenced by current or previous experience of treatment including treatment outcomes; and contributed to under-and overdosing. NB Drug toxicity may result from overdosing. Adverse events (AEs) may occur at recommended doses. AEs only influence individuals’ perceptions of strength and do not reflect the actual strength of the medication.