Last reviewed · How we verify

Hokunalin (tulobuterol) tape

GlaxoSmithKline · FDA-approved active Small molecule

Tulobuterol is a beta-2 adrenergic agonist that stimulates beta-2 receptors on airway smooth muscle to cause bronchodilation and improve airflow.

Tulobuterol is a beta-2 adrenergic agonist that stimulates beta-2 receptors on airway smooth muscle to cause bronchodilation and improve airflow. Used for Asthma, Chronic obstructive pulmonary disease (COPD).

At a glance

Generic nameHokunalin (tulobuterol) tape
SponsorGlaxoSmithKline
Drug classBeta-2 adrenergic agonist (long-acting)
TargetBeta-2 adrenergic receptor (ADRB2)
ModalitySmall molecule
Therapeutic areaRespiratory
PhaseFDA-approved

Mechanism of action

Tulobuterol binds to and activates beta-2 adrenergic receptors on bronchial smooth muscle cells, triggering a cascade that increases intracellular cAMP levels. This leads to smooth muscle relaxation and bronchodilation, improving airway patency and reducing airway resistance. The transdermal tape formulation (Hokunalin) provides sustained delivery over 24 hours for chronic asthma and COPD management.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape: