What do systematic reviews say?

Interventions (vitamin B1, mefenamic acid, tranexamic acid) vs placebo or active comparators (desmopressin, sodium diclofenac, flavonoids)

Interventions (vitamin B1, mefenamic acid, tranexamic acid) showed no clear difference in side effects: vomiting compared with placebo or active comparators (desmopressin, sodium diclofenac,… (low certainty).

• Interventions to prevent or treat heavy menstrual bleeding or pain associated with intrauterine‐device use 2022 · Cochrane Headline outcomes only
  OR 0.74 [0.25, 2.18]
  1 study · 100 participants
  Low