Drug interactions
Hyoscyamine spray + Trazodone
Severity: Minor
Hyoscyamine spray and Trazodone: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Hyoscyamine given as an oral spray is absorbed systemically and has antimuscarinic effects. Together with trazodone it may add to dry mouth, constipation, urinary retention and drowsiness.
What this interaction means in plain words
Hyoscyamine spray and Trazodone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Additive antimuscarinic and sedative effects.
What to do
Monitor for anticholinergic effects and sedation, especially in older patients. Reduce the hyoscyamine dose if symptoms occur.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Trazodone
- Arsenic trioxide + Trazodone Contraindicated
- Ibutilide + Trazodone Contraindicated
- Isocarboxazid + Trazodone Contraindicated
- Levoketoconazole + Trazodone Contraindicated
- Methylene blue + Trazodone Contraindicated
- Phenelzine + Trazodone Contraindicated
Frequently asked questions
Can I take Hyoscyamine spray with Trazodone?
MediHelp rates the interaction as minor. Hyoscyamine spray and Trazodone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Hyoscyamine given as an oral spray is absorbed systemically and has antimuscarinic effects. Together with trazodone it may add to dry mouth, constipation, urinary retention and drowsiness.
How serious is the interaction between Hyoscyamine spray and Trazodone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for anticholinergic effects and sedation, especially in older patients. Reduce the hyoscyamine dose if symptoms occur.
What other medicines interact with Trazodone?
MediHelp also lists interactions of Trazodone with, for example, Arsenic trioxide, Ibutilide, Isocarboxazid. The full list is on the Trazodone page.
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