Most medications have some side effects for some patients. It amazes me how the FDA seems to be alright with that and yet is preventing patients from accessing their own stem cells when the safety record there is so much better. Makes no sense to me.
From the site that Pedk is talking about in case the link goes cold:
Serious adverse effects include paradoxical bronchospasm, cardiovascular effects, acute narrow-angle glaucoma, and worsening of urinary retention. The most frequent adverse effects reported by patients using the drug included pharyngitis, sinusitis, lower respiratory tract infection, constipation, diarrhea, extremity pain, muscle spasms, neck pain, and chest pain, according to the FDA.
The drug will carry a boxed warning stating that long-acting beta-agonists raise the risk for asthma-related death. The safety and efficacy of the umeclidinium/vilanterol combination have not been established in patients with asthma, and the combination is not approved for asthma treatment. It also is not intended to be used as a rescue therapy for sudden breathing problems, including bronchospasm, the FDA statement notes.