Management of Bloating and Constipation

Introduction to Hyoscyamine

Hyoscyamine is not recommended as a first-line treatment for bloating and constipation as it may worsen constipation due to its anticholinergic effects, and has limited evidence supporting its efficacy for these specific symptoms 1
The American Gastroenterological Association suggests using antispasmodics in IBS patients, but notes that their regular use in constipation may be limited due to anticholinergic effects 1

Limited evidence supports hyoscyamine's effectiveness specifically for bloating symptoms 1, 2
For constipation management, the AGA recommends fiber supplementation, osmotic laxatives, stimulant laxatives for short-term use, and prescription medications like linaclotide, plecanatide, or prucalopride for more severe cases 3, 4
Secretagogues like linaclotide or lubiprostone can address both constipation and bloating symptoms 3, 4
Central neuromodulators like tricyclic antidepressants or serotonin-norepinephrine reuptake inhibitors may help reduce visceral sensations 2, 5
Biofeedback therapy may be beneficial for patients with objective abdominal distention due to abdominophrenic dyssynergia 2, 6
Prucalopride, a 5-HT4 agonist, may provide additional benefit for abdominal pain along with improving constipation 3, 4
Polyethylene glycol is an effective and inexpensive option for chronic constipation 3, 4

For patients with both bloating and constipation, avoid hyoscyamine as it may worsen constipation 1
Brain-gut behavioral therapies and dietary modifications should be considered as part of the comprehensive management approach 2, 5