Answer
The most frequent side effects of tapentadol prolonged-release tablets in placebo-controlled trials were nausea, dizziness, constipation, headache and somnolence (sleepiness), with adverse reactions predominantly mild or moderate.
Sources for this answer
- Tapentadol Krka 150 mg prolonged-release tabletsKrka UK Ltd · emc · SmPC §4.8 Undesirable effects · Version 2Document updated
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