Yes, Xopenex is a rescue med. My Husband uses it for rescue and it seems to work fairly quickly for him.
The type of medication that Xopenex is requires warnings about Paradoxical Bronchospasm. This same warning applies to Albuterol as well, and if you've been fine with that then you'll probably be fine with Xopenex.
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Anemia, Lymphopenia, intermittant Pancytopenia, chronic malabsorption/malnutrition, etc.; Currently TPN-dependent.
Meds: Zofran, Pulmicort, Vitamin B12 Shots, Heparin (to flush PICC line).