Cholinergic AntagonistsBronchodilator AgentsScopolamine DerivativesParasympatholyticsPropanthelineIpratropiumUrinary Bladder, OveractiveDrug SubstitutionMuscarinic AntagonistsAtropineAlbuterolTrihexyphenidylBenzilatesForced Expiratory VolumeAdministration, InhalationBiperidenAsthmaNebulizers and VaporizersOrphenadrineTerbutalineAtropine DerivativesSpirometryPulmonary Disease, Chronic ObstructiveGlycopyrrolateVital CapacityLung Diseases, ObstructiveMetaproterenolAdrenergic beta-AgonistsAirway ResistancePeak Expiratory Flow RateRespiratory Function TestsFenoterolDouble-Blind MethodNortropanesBronchoconstrictionAdrenergic beta-2 Receptor AgonistsAerosolsButylaminesMetered Dose InhalersAirway ObstructionBronchial Provocation TestsScopolamine HydrobromideInhalation SpacersAnticholinergic SyndromeButylscopolammonium BromideMandelic AcidsDisopyramideClemastineMethacholine ChlorideSalivationCross-Over StudiesBronchiProcyclidineUrinary Incontinence, UrgeAdrenal Cortex HormonesChlorofluorocarbonsRespiratory TherapyEthanolaminesInspiratory CapacityRespiratory Therapy Department, HospitalMaximal Expiratory Flow RateAntitussive AgentsDrug Therapy, CombinationAmitriptylineBronchial SpasmNocturnal EnuresisTheophyllineBasal Ganglia DiseasesNedocromilIndansNeurologic ManifestationsPhysostigmineAnti-Asthmatic AgentsBronchoconstrictor AgentsLungForced Expiratory Flow RatesHistamine AntagonistsAmino AlcoholsDicyclomineTreatment OutcomeDeliriumCoughAminophyllineFunctional Residual CapacityDose-Response Relationship, DrugDiphenoxylateSafety-Based Drug WithdrawalsAntipsychotic AgentsAtropa belladonnaDibenzazepinesDyspneaPhenylpropanolamineRespiratory SoundsBeclomethasoneQuinolonesPolypharmacyBelladonna AlkaloidsGuinea PigsClinical Trials as TopicRespiratory Care Units