Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Serum lamotrigine levels at 12 weeks in CEQUEL (Comparative Evaluation of QUEtiapine plus Lamotrigine combination versus quetiapine monotherapy [and folic acid versus placebo] in bipolar depression) participants did not differ between folic acid (FA)‐positive (n=20) and FA‐negative (n=23) groups. Different coloured symbols indicate the dose of lamotrigine given, as shown in the key. A number of individuals had levels below the 3‐14 mg/L therapeutic range
