Avoid coadministration of sensitive CYP3A4 substrates with ivosidenib or replace with alternative therapies. If coadministration is unavoidable, monitor patients for loss of therapeutic effect of these drugs.

2.2 Recommended Dosage in Pediatric Patients

Coadministration of vericiguat with PDE-5 inhibitors may result in additive hypotensive effects. alfuzosinsildenafil increases effects of alfuzosin by pharmacodynamic synergism. sildenafil increases effects of alfuzosin by pharmacodynamic synergism. apalutamideapalutamide will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Coadministration of apalutamide, a strong CYP3A4 inducer, with drugs that are CYP3A4 substrates can result in lower exposure to these medications.

Cardiovascular problems

Avoid or substitute another drug for these medications when possible. Evaluate for loss of therapeutic effect if medication must be coadministered. Adjust dose according to prescribing information if needed. apalutamide will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. asenapinesildenafil increases effects of asenapine by pharmacodynamic synergism. ivosidenib will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. ketoconazoleketoconazole will increase the level sildenafil 25 mg tablets or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Country Approval Status Notable Regulations
USA Approved Prescription required
European Union Approved Prescription-only, monitoring recommended
Canada Approved Prescription only
India Approved Over the counter in some regions
Australia Approved Restricted to prescription use

Coadministration with strong CYP3A4 inhibitors and sildenafil (for pulmonary arterial hypertension) is not recommended. When used for erectile dysfunction, consider reducing initial sildenafil dose of 25 mg in patients also taking a strong CYP3A4 inhibitor and monitor for sildenafil toxicities (eg, dyspepsia, headache, hypotension). ketoconazole will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. lenacapavirlenacapavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Refer to the prescribing information of PDE5 inhibitors for dose recommendations.

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lenacapavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. levoketoconazole will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. lonafarniblonafarnib will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. If coadministration unavoidable, monitor for adverse reactions and reduce CYP3A substrate dose in accordance with product labeling. lonafarnib will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Warnings & Precautions

Delay initiation of treatment with any CYP3A4 substrates for at least 7 days following discontinuation of conivaptan. conivaptan will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. crizotinibcrizotinib increases levels of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. If concomitant use of strong CYP3A inhibitors is unavoidable, reduce crizotnib to 250 mg PO qDay. After discontinuation of a strong CYP3A inhibitor, resume crizotinib dose used prior to initiating the strong CYP3A4 inhibitor.

Serious Side Effects

crizotinib increases levels of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. dabrafenibdabrafenib will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels dabrafenib will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels doxazosinsildenafil increases effects of doxazosin by pharmacodynamic synergism. sildenafil increases effects of doxazosin by pharmacodynamic synergism. lopinavirlopinavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. lopinavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. mifepristonemifepristone will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. mifepristone will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Frequently asked questions

Coadministration contraindicated if sildenafil used for pulmonary arterical hypertension. Reduce sildenafil dose if used for erectile dysfunction. nirmatrelvir/ritonavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nitroglycerin rectalsildenafil increases effects of nitroglycerin rectal by additive vasodilation. Use of nitroglycerin within a few days of PDE5 inhibitors is contraindicated.

Patient resources

PDE5 inhibitors have been shown to potentiate the hypotensive effects of organic nitrates. sildenafil increases effects of nitroglycerin rectal by additive vasodilation. Either increases effects of the other by additive vasodilation. Coadministration of PDE-5 inhibitors (eg, avanafil, sildenafil, tadalafil, vardenafil) and guanylate cyclase stimulators (eg, riociguat) is contraindicated due to risk of additive hypotension; do not administer within 24 hr of each other. Either increases effects of the other by pharmacodynamic synergism. mitotanemitotane decreases levels of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels. mitotane decreases levels of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nafcillinnafcillin will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels nafcillin will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Patients receiving indinavir with ritonavir should receive not more than 25 mg of sildenafil for treatment of erectile dysfunction in a 48-hour period, and patients receiving other protease inhibitors should use a lower initial sildenafil dose of 25 mg. Patient taking sildenafil for PAH with ritonavir is not recommended.

  • Sildenafil tablets may cause flushing or warmth sensation during use.
  • Some users experience indigestion or mild dizziness.
  • These effects are generally temporary and resolve spontaneously.

pentobarbitalpentobarbital will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Sanctus Global Lifesciences Pvt. Ltd.

sildenafil increases effects of asenapine by pharmacodynamic synergism. ceritinibceritinib will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. ceritinib will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. chloramphenicolchloramphenicol will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. chloramphenicol will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

What’s the difference between sildenafil and Viagra?

clarithromycinclarithromycin will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Coadministration of these phosphodiesterase inhibitors with clarithromycin, a CYP3A4 inhibitor is not recommended. Increased systemic exposure of these drugs may occur with clarithromycin; consider reduction of dosage for phosphodiesterase inhibitors. clarithromycin will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. conivaptanconivaptan will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels pentobarbital will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels phenobarbitalphenobarbital will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels phenobarbital will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

  • Sildenafil citrate tablets are part of a class called phosphodiesterase inhibitors.
  • They improve blood flow to achieve and sustain an erection.
  • The medication is not a cure for erectile dysfunction but treats symptoms.

Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels phenoxybenzaminesildenafil increases effects of phenoxybenzamine by pharmacodynamic synergism. sildenafil increases effects of phenoxybenzamine by pharmacodynamic synergism. phentolaminesildenafil increases effects of phentolamine by pharmacodynamic synergism.

  • People with certain health conditions should consult their doctor before use.
  • Conditions include heart disease, low blood pressure, or kidney/liver issues.
  • Adjustments to dosage may be necessary based on health status.

sildenafil increases effects of phentolamine by pharmacodynamic synergism. phenytoinphenytoin will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels phenytoin will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

More about sildenafil

Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels eslicarbazepine acetate will decrease the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels fexinidazolefexinidazole will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Coadministration may increase risk for adverse effects of CYP3A4 substrates. fexinidazole will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. ivosidenibivosidenib will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Potent CYP3A4 inducers are expected to cause substantial decreases in sildenafil plasma levels prazosinsildenafil increases effects of prazosin by pharmacodynamic synergism.

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Dr. med. Fabienne Gretener

Werdegang

Januar 2024 bis heute
Oberärztin SenoMed AG
Schwerpunktsweiterbildung gynäkologische Senology

März 2023 – Dezember 2023
Oberärztin, SenoMed AG Bern 20%

Januar 2023 – November 2023
Assistenzärztin Psychiatrie, Klinik Meissenberg Zug

Januar 2021 – November 2022
Assistenzärztin Gynecology und Geburtshilfe, Bürgerspital Solothurn

November 2019 – Oktober 2020
Assistenzärztin Gynecology und Geburtshilfe, Kantonsspital Aarau

Januar 2017 – Juli 2019
Assistenzärztin Gynecology und Geburtshilfe, Kantonsspital Olten

Paul Laszlo Bernhard

Werdegang

Jan 2024 bis heute
Facharzt SenoMed AG – Brustzentrum Bern Biel

Aug 2019 – Dez 2023
Oberarzt Frauenklinik und Brustzentrum Bürgerspital, Solothurn, Schwerpunktweiterbildung operative Gynecology und Geburtshilfe sowie Senology

Mai 2019 Facharzttitel Gynecology & Geburtshilfe

Apr 2016 – Jul 2019
Arzt in Weiterbildung, Inselspital Bern, Universitätsklinik für Frauenheilkunde

Dez 2014 – Apr 2016
Arzt in Weiterbildung, Kantonsspital Baden

Sep 2012 – Sep 2014
Arzt in Weiterbildung, Universitätsklinikum Carl Gustav Carus, Dresden

Feb 2012 – Sep 2012
Arzt in Weiterbildung, Universitätsfrauenklinik Leipzig

Nov 2011 Approbation zum Arzt

2005 – 2011
Studium der Humanmedizin an der Charité, Universitätsmedizin Berlin

Dr. med. Patrizia Sager

Werdegang

Okt 2023 bis heute
Leiterin Weiterbildungsstätte gynäkologische Senology

Feb 2018 – bis heute
Leiterin Brustzentrum Bern Biel
Practiceinhaberin SenoMed AG

Nov 2017 – bis heute
Belegärztin Salem-Spital Bern

Jan 2013 – Okt 2017
Leitung Senology Brustzentrum Frauenklinik Universitätsspital Insel, Bern

Jan 2012 – Dez 2012
Oberärztin Gynecology / Geburtshilfe, Frauenklinik Universitätsspital Insel, Bern

Nov 2010 – Dez 2011
Leitende Ärztin Gynecology und Geburtshilfe, Frauenklinik Rheinfelden (DE)

Nov 2009 – Okt 2010
Oberärztin Gynecology und Geburtshilfe, Kantonsspital Liestal

Jan 2009 – Okt 2009
Oberärztin i.V. Gynecology und Geburtshilfe, Regionalspital Interlaken

Jun 2008 – Dez 2008
Assistenzärztin Gynecology und Geburtshilfe, Regionalspital Interlaken

Aug 2007 – Mai 2008
Assistenzärztin Gynecology und Geburtshilfe, Universitätsspital Zürich

Feb 2007 – Jun 2007
Oberärztin Gynecology und Geburtshilfe, Universitätsspital Groote Schuur, Kapstadt, Südafrika

Jan 2004 – Dez 2006
Assistenzärztin Gynecology und Geburtshilfe, Regionalspital Thun

Jan 2003 – Dez 2003
Assistenzärztin Chirurgie und Orthopädie, Regionalspital Thun

Schulen, Studium & Diplome

2023
Schwerpunkt gynäkologische Senology

2014
Diplom Senology SGGG

2013
Diplom Senology: European Academy of Senology

2010
FMH Gynecology und Geburtshilfe inkl. Schwerpunkt operative Gynecology

2003
Promotion

2002
Staatsexamen in Humanmedizin

1996 – 2002
Humanmedizinstudium Universitätsspital Basel

Mitglied- und Partnerschaften

  • Schweizerische Gesellschaft für Gynecology und Geburtshilfe SGGG
  • Schweizerische Gesellschaft für Senology SGS
  • Mitglieder Arbeitsgemeinschaft Gynäkologische Onkologie AGO, Schweiz
  • European Academy of Senology EAoS
  • SAKK Project-Group breast cancer
  • Schweizerische Gesellschaft für Ultraschall in der Medizin SGUM
  • Verbindung der Schweizer Ärzte und Ärztinnen FMH
  • Society of women in senology SWIS
  • Vorstandsmitglied Ärztenetzwerk Bern