The Effect of Intravenous Infusion of Tramadol-ondansetron on Recovery After Caesarean Section.

Inclusion Criteria: * Woman over 18 years old undergoing caesarean section * She agrees to participate voluntarily. * She is already receiving any of the analgesic strategies studied. Exclusion Criteria: * Receiving an analgesic medication other than the one mentioned as "routine multimodal analgesia" (either as regular medication or for acute post-surgical pain) * Medical history that determines the baseline data of the scales and data that we collect ( pain or previous disabilities; addiction to drugs, alcohol or drugs; another disease that worsens the quality of life) * Medical history that conditions the pharmacological effect (allergy, intolerance or atypical reaction to any of the drugs involved in its treatment or possible cross-reactions ) * Contraindication for neuraxial techniques (patient refusal, difficulty in understanding or communication, localized infection, increased intracranial pressure, or other medical criteria) * Two or more previous caesarean sections * Difficulty in understanding or communication * Mother care will not be available to the newborn in the postpartum period for any reason