Heavy Drug (Surrender Sounds Mix) is an EP released by British electronic music group Unkle.

The track was reworked during the sessions for Where Did the Night Fall set for release in May 2010.

[2] A remix was made during the recording, entitled the Surrender Sounds Mix, which was featured on James Lavelle's Global Underground 037: Bangkok, and was officially released on 16 August.

It was delayed in USA, due to distribution errors, and was finally released on 28 August 2009.

[4] A video contest for the song was officially revealed on UNKLE's blog.