About salmeterol xinafoate
Long-acting beta-2 agonist bronchodilator
Used for
- Long-term control of asthma, alongside an inhaled corticosteroid
- Prevention and maintenance treatment of chronic obstructive pulmonary disease (COPD)
Usual adult dose
Asthma: 50 micrograms inhaled twice daily with an inhaled corticosteroid. COPD: 50 micrograms twice daily.
Usual dose in children
Asthma, ages 4 years and older: 50 micrograms inhaled twice daily with an inhaled corticosteroid.
Common side effects
- Headache
- Tremor or nervousness
- Palpitations or fast heartbeat
- Muscle cramps
Important warnings
- Not for sudden breathing attacks; use a rescue inhaler instead.
- For asthma, never use without an inhaled corticosteroid.
- Do not exceed prescribed use; excessive use can cause serious heart effects.
- Seek urgent care for worsening breathing or an allergic reaction.
Pregnancy
Use only when needed; a clinician should weigh benefits against potential risks.
Breastfeeding
Use only when needed; discuss potential benefits and risks with a healthcare professional.
Interactions
- Beta-blockers may reduce its effect or trigger breathing problems.
- Other stimulant or sympathomimetic medicines can increase heart-related side effects.
- Some antifungals, antibiotics, and HIV medicines may increase salmeterol exposure.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.