DoxycyclineNauseaAnti-Bacterial AgentsPostoperative Nausea and VomitingTetracyclinesTetracyclineContraceptives, OralMatrix Metalloproteinase InhibitorsAntibiotic ProphylaxisVomitingMicrobial Sensitivity TestsAntiemeticsContraceptives, PostcoitalContraceptives, Oral, CombinedAzithromycinContraceptives, Oral, HormonalMinocyclineDrug Therapy, CombinationOxytetracyclineTreatment OutcomeAnti-Infective AgentsBrucellosisDrug Resistance, BacterialDouble-Blind MethodContraception, PostcoitalErythromycinDrug Resistance, MicrobialAdministration, OralFilaricidesOndansetronContraception BehaviorContraceptive Agents, FemaleCiprofloxacinGentamicinsContraceptionStreptomycinCeftriaxoneTrimethoprim-Sulfamethoxazole CombinationMedication AdherenceStreptomycesAntibiotics, AntineoplasticPenicillinsTime FactorsMatrix Metalloproteinase 8OfloxacinBacterial InfectionsRifampinDrug Administration ScheduleDrug PackagingEthinyl EstradiolContraceptive Devices, FemaleAminoglycosidesBacteriaDesogestrelContraceptives, Oral, SyntheticPatient ComplianceDrugs, Chinese HerbalTabletsIvermectinUrethritisPlacebosMacrolides