Standard smokeless tobacco packaging: potential impact on perceived attractiveness, warning label visibility and harm perceptions among adults in Bangladesh.

Background: In Bangladesh, smokeless tobacco (SLT) is available in a variety of pack shapes and sizes. Lack of standard packaging could limit compliance with pictorial health warning label (HWL) requirements. We explored Bangladeshi SLT users' and non-users' perceptions of a proposed standard pack shape for (tobacco powder) and (chewing tobacco), including the role that HWL placement plays on harm perceptions.