Related Experiment Video
Updated: Jan 9, 2026

Subcutaneous Administration of Muscarinic Antagonists and Triple-Immunostaining of the Levator Auris Longus Muscle in Mice
Published on: September 8, 2011
Using Subcutaneous Hyoscine Butylbromide in A Terminal Patient with Myasthenia Gravis: A Case Report
King Jane Ong1, Ryan Lester Rabe Abool1
1Palliative Care Service, Department of Geriatric Medicine, Changi General Hospital, Singapore.
Abstract:
Management of "death rattle" at the end of life typically involves the use of anticholinergic agents to reduce airway secretions. However, in patients with myasthenia gravis - an autoimmune condition affecting acetylcholine receptors, causing fatigability and weakness of the skeletal muscles - the use of such agents poses a challenge. Anticholinergic agents antagonize the effects of acetylcholinesterase inhibitors, which are critical for treating myasthenia gravis, and may exacerbate symptoms. We report the case of a terminal patient with underlying myasthenia gravis who had concomitant death rattle. A trial of hyoscine butylbromide was effective in treating the death rattle, while the myasthenic symptoms remained quiescent. To our knowledge, this has not been reported previously.
Related Concept Videos
Myasthenia Gravis: Overview and Treatment
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which...
Myasthenia Gravis: Diagnostic Tests
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
Skeletal Muscle Relaxants: Therapeutic Uses
Depolarizing Blockers: Pharmocokinetics
Skeletal Muscle Relaxants: Adverse Effects
Unlike...
Indirect-Acting Cholinergic Agonists: Pharmacological Actions
At the neuromuscular junction, these agents work by inhibiting the breakdown of acetylcholine, allowing it to remain bound to the receptor and bind to nearby receptors. This process leads to repetitive firing of the endplate, causing muscle...

