Difference between revisions of "Fluoxetine-hypericum"
From Psychiatrienet
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* '''Day 29:''' start administration of hypericum in a dosage of 300 mg three times a day (900 mg/day). | * '''Day 29:''' start administration of hypericum in a dosage of 300 mg three times a day (900 mg/day). | ||
| caveat = | | caveat = | ||
| − | * Occurrence of the serotonin syndrome is possible without wash-out period. | + | * Occurrence of the serotonin syndrome is possible without wash-out period {{Lit-SSRI-Hypericum}} {{Lit-SSRI-Hypericum2}}. |
| info = | | info = | ||
{{HypericumInfo}} | {{HypericumInfo}} | ||
}} | }} | ||
Revision as of 15:26, 12 March 2010
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Switch medication from fluoxetine to hypericum.[1] [2]
Stop fluoxetine - Gradually reduce dosage of fluoxetine to a maximum of 20 mg/day, when this dosage is > 20 mg/day.
- When a dosage of 20 mg/day is reached, stop administration.
Start hypericumCaution is necessary.
- Day 1-28: a wash-out period of four weeks is necessary.
- Day 29: start administration of hypericum in a dosage of 300 mg three times a day (900 mg/day).
Cave
More information- Hypericum induces enzymes of the CYP P-450 type and P-gp type.
- Hypericum might have MAO-inhibiting and/or COMT-inhibiting properties.
- Many studies reported that hypericin is the main source of pharmacological effects of hypericum. However the IC50 of hypericin to inhibit MAO A and MAO B is 100- to 1000-fold higher than accessible Cmax values of hypericin after oral administration of hypericum.[5]
- ↑ Switches are based on literature references on this page and expert opinions of the authors. The authors have used pharmacokinetic and receptor affinity properties to determine the switch schedules
- ↑ Stahl, S. M. (2013). Stahl's essential psychopharmacology: Neuroscientific basis and practical applications (4th ed.). Cambridge University Press.
- ↑ F. Borelli et al.Herb-drug interactions with St John's wort (Hypericum perforatum): an update on clinical observations. AAPS J. 2009 Dec;11(4):710-27
- ↑ Izzo AA. Drug interactions with St John's wort (Hypericum perforatum): a review of the clinical evidence. Int J Clin Pharmacol Ther. 2004 Mar;42(3):139-48
- ↑ Wurglics M, Schubert-Zsilavecz M.Hypericum perforatum: a 'modern' herbal antidepressant: pharmacokinetics of active ingredients. Clin Pharmacokinet. 2006;45(5):449-68.
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