DoxycyclineTremorTabletsEssential TremorTablets, Enteric-CoatedChemistry, PharmaceuticalExcipientsAnti-Bacterial AgentsDrug CompoundingTetracyclinesDelayed-Action PreparationsTetracyclineMatrix Metalloproteinase InhibitorsTechnology, PharmaceuticalMethylcelluloseAtaxiaPowdersAdministration, OralParkinson DiseaseSolubilityHardnessElectromyographyDeep Brain StimulationAzithromycinCapsulesMinocyclineBrucellosisStereotaxic TechniquesHarmineHandwritingThalamusHarmalineLubricantsFilaricidesDouble-Blind MethodDosage FormsBiological AvailabilityTherapeutic EquivalencyOxytetracyclineMovement DisordersDrug StabilityCerebellar DiseasesTreatment OutcomeCelluloseDrug Therapy, CombinationPovidonePrimidoneTremorineDysarthriaPostureHardness TestsAdministration, BuccalAnti-Infective AgentsFragile X SyndromeMicrobial Sensitivity TestsWristFragile X Mental Retardation ProteinTime FactorsMatrix Metalloproteinase 8Drug CombinationsTrimethoprim-Sulfamethoxazole CombinationCross-Over StudiesMyoclonusAntimalarialsCompressive Strength