Dosage IV
- Tahun: 2006
- Negara:
- Genre: Adventure, Documentary
- Studio: Sender Films, Big UP Productions
- Kata kunci: sports, climbing, yosemite, rock climbing, ticino, hueco, peak district
- Pengarah: Josh Lowell
- Pelakon: Lisa Rands, Chris Sharma, Tommy Caldwell, Dave Graham, Randy Puro, Courtney Hemphill