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. 2023 Jul 17;21(4):609–616. doi: 10.9758/cpn.23.1081

Table 5.

Summary of AEs from the clinical trials

AE Phase 2 trial Phase 3 trial
Dextromethorphan-bupropion
(n = 48)
Bupropion
(n = 48)
Dextromethorphan-bupropion (n = 162) Placebo (n = 164)
Any AE 35 (72.9) 31 (64.6) 100 (61.7) 74 (45.1)
Serious AEa 0 0 1 (0.6) 0
Severe AEb 3 (6.3) 1 (2.1) 1 (0.6) 2 (1.2)
AE leading to discontinuation 6 (12.5) 6 (12.5) 10 (6.2) 1 (0.6)
Dizziness 10 (20.8) 2 (4.2) 26 (16.0) 10 (6.1)
Nausea 8 (16.7) 6 (12.5) 21 (13.0) 14 (8.5)
Headache NR NR 13 (8.0) 6 (3.7)
Diarrhea NR NR 11 (6.8) 5 (3.0)
Somnolence 1 (2.1) NR 11 (6.8) 5 (3.0)
Dry mouth 5 (10.4) 4 (8.3) 9 (5.6) 4 (2.4)
Anxiety 5 (10.4) 1 (2.1) 7 (4.3) 2 (1.2)
Decreased appetite 5 (10.4) 4 (8.3) 6 (3.7) 1 (0.6)
Change in body weight at week 6 (kg) −0.6 ± 2.4 0.1 ± 2.1 −0.2 ± 7.8 0.4 ± 2.3

Values are presented as number (%) or mean ± standard deviation.

AE, adverse event; NR, not reported.

aAny AE that results in death, was life threatening, led to hospitalization or prolongation of hospitalization, or caused significant disability or incapacity. bA severe AE that interrupted usual daily activities, significantly affected clinical status, or requires intensive therapeutic intervention.