10-20 mEq PO daily for prevention; treat established hypokalemia per measured deficit, typically 40-100 mEq/d in divided doses; IV 10 mEq/h peripheral, 20 mEq/h central with telemetry
preparations
String
8, 10, 20, 25 mEq tablets/capsules (most ER); effervescent and oral solution; IV concentrate (must be diluted)
fda_max
String
IV peripheral 10 mEq/h (40 mEq/L); IV central 20 mEq/h with cardiac monitoring; PO single doses generally ≤40 mEq
pill_id
Text
routes
List of String, delimiter: ,
Oral • IV
onset
String
Hours (PO); IV faster but rate-limited
duration
String
Variable; depends on ongoing losses
halflife
String
Not meaningfully described for an electrolyte; distribution between intra- and extracellular compartments is the relevant kinetic
bioavailability
String
60-80% (oral)
pregnancy
String
Generally safe at replacement doses; treat the underlying cause of hypokalemia.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup>
legal
String
[[USLegal:Prescription only|Rx-only]] (higher concentrations and IV) and OTC (low-dose supplements) in US
