Indacaterol-induced severe constipation and abdominal pain: is there a role for colonic β3-adrenoceptors?

Indacaterol is an ultra-long-acting β2-adrenoceptor agonist that is indicated for the maintenance treatment of chronic obstructive pulmonary disease. We present a patient with severe chronic constipation and abdominal pain most probably induced by this medicament. Symptoms rapidly disappeared within 2 days after the drug withdrawal.

Syndrome of inappropriate antidiuresis in doxylamine overdose.

Doxylamine succinate, an H(1)-antihistamine drug, is commonly used as sleep-inducing agent as well as therapy for nausea and vomiting in pregnancy. At usual doses, it may cause impairment of cognitive and psychomotor performance, anticholinergic effects, agitation and postural hypotension. Besides, since this drug is frequently involved in either accidental or intentional overdoses, it seems relevant to bear in mind other possible toxic effects.

Pulmonary arterial hypertension associated with neurofibromatosis type 1.

The authors report a case of severe pulmonary arterial hypertension (PAH) in a 75-year-old woman who had received a diagnosis of neurofibromatosis type 1 (NF1) 23 years before. She presented with progressive dyspnoea and recurrent syncope. Even though the patient initially improved after starting supportive and specific treatment for PAH, she then deteriorated and died from respiratory failure 11 months after the diagnosis of PAH.