Drug interactions
Gabapentin + Loratadine
Severity: Minor
Gabapentin and Loratadine: 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
Gabapentin can cause sedation and respiratory depression with other CNS depressants. Loratadine is minimally sedating at usual doses, so any additive effect is small, though higher-risk patients may notice more drowsiness.
What this interaction means in plain words
Gabapentin and Loratadine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Gabapentin belongs to Central Nervous System; Loratadine belongs to Respiratory.
Why it happens
Possible additive CNS depression through pharmacodynamic synergism.
What to do
No routine change is needed; counsel patients about drowsiness. Monitor elderly patients and those with respiratory compromise for excess sedation.
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 Loratadine
- Acrivastine + Loratadine Moderate
- Amobarbital + Loratadine Moderate
- Fentanyl + Loratadine Moderate
- Isocarboxazid + Loratadine Moderate
- Levoketoconazole + Loratadine Moderate
- Loratadine + Mavacamten Moderate
Other interactions of Gabapentin
Frequently asked questions
Can I take Gabapentin with Loratadine?
MediHelp rates the interaction as minor. Gabapentin and Loratadine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Gabapentin can cause sedation and respiratory depression with other CNS depressants. Loratadine is minimally sedating at usual doses, so any additive effect is small, though higher-risk patients may notice more drowsiness.
How serious is the interaction between Gabapentin and Loratadine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine change is needed; counsel patients about drowsiness. Monitor elderly patients and those with respiratory compromise for excess sedation.
What other medicines interact with Loratadine?
MediHelp also lists interactions of Loratadine with, for example, Acrivastine, Amobarbital, Fentanyl. The full list is on the Loratadine page.
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