Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
Cytoprethaline is a drug designed for humans in cryo-sleep. Cytoprethaline prevents damage to cell membranes from ice crystal formation. It is usually injected, recommended by a doctor, but usually by a Medic or a premeasured self-injector. Cryo-sleep is almost always fatal without the use of cytoprethaline. However, 1 in 50,000 people exhibit an allergic reaction to this drug, those that do are disqualified from UNSC service, but can still serve in civilian roles attached to the UNSC.