Difference between revisions of "Hypericum-venlafaxine"
From Psychiatrienet
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* '''Day 15:''' stop administration of hypericum. | * '''Day 15:''' stop administration of hypericum. | ||
| start = | | start = | ||
| − | * '''Day 15- | + | * '''Day 15-22:''' a wash-out period of at least one week is necessary.<ref>{{Pubmed|18294328|Imai H, Kotegawa T, Tsutsumi K, Morimoto T, Eshima N, Nakano S, Ohashi K. The recovery time-course of CYP3A after induction by St John's wort administration. Br J Clin Pharmacol. 2008 May;65(5):701-7.}}</ref><ref>{{Pubmed|16640452|Wurglics M, Schubert-Zsilavecz M. Hypericum perforatum: a 'modern' herbal antidepressant: pharmacokinetics of active ingredients. Clin Pharmacokinet. 2006;45(5):449-68.}}</ref><ref>{{Pubmed|19593191|Derijks HJ, Janknegt R, Heerdink ER, De Koning FH, Krekels MM, Looij BJ, Egberts AC. Influence of antidepressant use on glycemic control in patients with diabetes mellitus: an open-label comparative study. J Clin Psychopharmacol. 2009 Aug;29(4):405-8.}}</ref><ref name="informatorium">{{KNMP|venlafaxine}}</ref> |
| − | * '''Day | + | * '''Day 23:''' {{startVenla}} |
| caveat = | | caveat = | ||
* Occurrence of the serotonin syndrome is possible without wash-out period. | * Occurrence of the serotonin syndrome is possible without wash-out period. | ||
Revision as of 14:40, 11 August 2011
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Switch medication from hypericum to venlafaxine.[1] [2]
Stop hypericum - Day 1-14: Gradually decrease the dosage of hypericum.
- Day 15: stop administration of hypericum.
Start venlafaxine- Day 15-22: a wash-out period of at least one week is necessary.[3][4][5][6]
- Day 23: Start administration of venlafaxine in a normal dosage of 37,5 mg or 75 mg (slow release) /day.
Cave- Occurrence of the serotonin syndrome is possible without wash-out period.
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.[7]
- ↑ 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.
- ↑ Imai H, Kotegawa T, Tsutsumi K, Morimoto T, Eshima N, Nakano S, Ohashi K. The recovery time-course of CYP3A after induction by St John's wort administration. Br J Clin Pharmacol. 2008 May;65(5):701-7.
- ↑ Wurglics M, Schubert-Zsilavecz M. Hypericum perforatum: a 'modern' herbal antidepressant: pharmacokinetics of active ingredients. Clin Pharmacokinet. 2006;45(5):449-68.
- ↑ Derijks HJ, Janknegt R, Heerdink ER, De Koning FH, Krekels MM, Looij BJ, Egberts AC. Influence of antidepressant use on glycemic control in patients with diabetes mellitus: an open-label comparative study. J Clin Psychopharmacol. 2009 Aug;29(4):405-8.
- ↑ KNMP; Informatorium Medicamentorum 2023; Monografie "venlafaxine" (Dutch)
- ↑ 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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