Table 4

Incidence rates of AEs in monotherapy and polytherapy LTG users in RCTs

Adverse eventMonotherapy n=340 (%)Polytherapy n=253 (%)p Value
Rash18 (5.3)21(8.3)0.09
Headache16 (4.7)20 (7.9)0.02*
Nasopharyngitis13 (3.8)14 (5.5)0.33
Somnolence5 (1.5)47 (18.6)<0.001*
Abdominal pain5 (1.5)13 (5.1)0.01*
Dizziness4 (1.2)27 (10.7)<0.001*
Nausea3 (0.9)11 (4.3)0.01*
Increased seizure1 (0.3)0 (0)1.00
Vomiting0 (0)22 (8.7)<0.001*
Fever0 (0)16 (6.3)<0.001*
Ear infection0 (0)9 (3.6)<0.001*
Cough0 (0)2 (0.7)0.18
Others65 (19.1)111 (43.9)
Total127313
  • *significant

  • %, incidence rate; n, number of patients.

  • AEs, adverse events; LTG, lamotrigine; RCT, randomised controlled trial.