The short answer
Tea can precipitate imipramine in a laboratory mixture, but reduced absorption in people and a protective timing gap have not been established.
What this answer covers
Camellia sinensis tea; laboratory tannins and brewed tea are not equivalent to every extract.
- Supplement or preparation
- Camellia sinensis
- Medication ingredient
- imipramine
What the experiment showed
When drug solutions were mixed with tea or tannins, imipramine was among the medicines that precipitated. The experiment was performed outside the body.
What remains unknown in people
The experiment did not measure imipramine blood levels or depression response after drinking tea. It cannot determine how much, if any, absorption changes in normal use.
Keep preparations distinct
Bring the type of tea or concentrated extract and the amount you use to the pharmacist. Caffeine-related sleep effects are separate from the proposed binding effect.
Do not rely on an invented interval
No validated spacing schedule follows from the experiment. Follow the prescribed medicine instructions and seek review if response changes.
Evidence and practical considerations
Absorption & effectiveness
Laboratory interaction is real within its test conditions, but clinical reduced effectiveness and fixed separation claims remain insufficient.
- Exact scope
- Camellia sinensis tea; laboratory tannins and brewed tea are not equivalent to every extract. with Exact oral imipramine hydrochloride tablets. RxNorm IN 5691/PIN 150816 hydrochloride; pamoate capsule is not assumed the same tested formulation. Desipramine metabolite evidence is distinguished from directly prescribed imipramine.
- Medication form and route
- oral
- Timing or duration
- Source-specific single-dose, repeated-dose and observational exposures distinguished.
What remains uncertain
- No human absorption or clinical-response study identified; the study does not validate two-hour spacing.
Factors that may matter: preparation and plant part; clinical indication; dose; other medicines; baseline alertness.
Read the supporting source summaries
Source 1: current product label
dailymed.nlm.nih.gov · Source check Sep 10, 2026
Population: People prescribed oral imipramine.
Exact label warns about anticholinergic and sympathomimetic co-use, alcohol-related CNS effects and MAOI combinations. It does not explicitly name tryptophan, St John’s wort or serotonin syndrome.
How this applies: RxNorm IN 5691/PIN 150816 hydrochloride; pamoate capsule is not assumed the same tested formulation. Desipramine metabolite evidence is distinguished from directly prescribed imipramine.
No universal supplement interval, event rate or preparation equivalence established. Original label distinguishes warnings from measured pair-specific results.
Source 2: original in vitro study
pubmed.ncbi.nlm.nih.gov · Source check Sep 10, 2026
Population: Laboratory mixtures, not treated people.
Precipitation included imipramine and amitriptyline; effects differed among drugs.
How this applies: Only the named drug, preparation, route and measured endpoints apply.
No human absorption measurement, clinical treatment failure, desipramine-specific result in abstract or validated two-hour interval.
Research assessment: · Open full citations ↗
Review and change history
- Publication status
- Published research summary
- Clinical review
- Not yet recorded
| Date | Update |
|---|---|
| Article prepared | |
| Current exact available claims adjudicated using original captures and explicit identity and comparator limits. | |
| Research summary published |
Article revision: 8e69518e9b064032
This guide brings together the evidence records used by our interaction checker. Each finding retains its own preparation limits, research date, and source summaries.
Full citations require verification. Reading this answer and the source summaries does not.
Taking other supplements or medications?
Use the checker to explore your other combinations. Ask a pharmacist to review the exact products, amounts and medical conditions in your complete list.
Open the interaction checkerInformation, not medical advice. Do not change prescribed treatment based on this guide.