Customs Rules

Medicine
https://www.pharmacy.gov.my/v2/en/faq/c … aysia.html

All medications must be carried in the bottles or packets in which they were dispensed with the name of the patient on the label and must carry a description of the contents.

One month's supply of personal medications can be brought into Malaysia for the exclusive use of that person. If the visitor is travelling beyond Malaysia to other countries then medication sufficient for the entire journey may be brought into the country.

Non-prescribed items bought over the counter from a pharmacy or chemist must also be carried in the bottles or packets in which they were sold that carry a description of the product. No more than one month's supply of an item may be brought into Malaysia for the personal use of the visitor.

Never carry loose tablets into the country.

Health food supplements, organic medicines and vitamins may be brought into Malaysia for the personal use of the visitor but must be labelled and identified.

Food
http://www.customs.gov.my/en/tp/pages/tp_ie.aspx