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Table 1 Pharmacokinetic data of levomepromazine[21, 22]

From: Evidence for the use of Levomepromazine for symptom control in the palliative care setting: a systematic review

Bioavailability 20-40% p.o.
Onset of action 30 min.
Maximum serum concentration (tmax) p.o.: 2–3 h
i.m.: 30–60 min
Half life (t1/2) 15-30 h
Duration of action 8 h