Oxycodone and Electrolyte Imbalance

Short answer: Oxycodone does not usually upset your electrolytes on its own, but it can contribute in several ways: vomiting, diarrhea from withdrawal or laxatives, reduced eating and drinking, rare hormone effects such as SIADH (which lowers sodium), and, with long-term use, adrenal insufficiency. Persistent weakness, cramps, confusion, a racing or irregular heartbeat, or severe …

Can Oxycodone Cause Dehydration?

Short answer: Oxycodone is not a diuretic and does not directly “dry you out,” but it can lead to dehydration indirectly. Nausea and vomiting, sedation that reduces how much you drink, sweating, constipation-related eating changes, and withdrawal-related diarrhea can all leave you short on fluid. Dehydration matters more with oxycodone because it can raise dizziness …