pyroglutamic acid glutathione Acetaminophen Toxicity and 5-Oxoproline (Pyroglutamic Acid): A Tale of Two Cycles, One an ATP-Depleting Futile Cycle and the Other a Useful Cycle from Santa Cruz Pyroglutamic acidosis: an unusual cause
Description
International Journal of Molecular Sciences, 22 (19), 10376.
The weight loss felt incredible

How Does Phentermine Work
doi: 10.1038/s41401-021-00620-9

You would need to travel with bacteriostatic water and reconstitution supplies, but these are far less temperature-sensitive than reconstituted solution
However, if hunger becomes disruptive at night, a morning dose may be preferable