Viagra Interactions with Other Medications

If this happens, get medical attention immediately.

Mechanism of action

Coadministration may increase risk for adverse effects of CYP3A4 substrates. It is best to take Viagra on an empty stomach.

Avoid fatty foods, excessive alcohol, and marijuana. There are some common side effects like headache, flushing, abnormal vision, and cold like symptoms, plus others which can be serious. Talk with Albany Urology Clinic about all possible side effects before taking Viagra. Contact Albany Urology Clinic at 229-883-1503 if you are having issues getting and keeping an erection.

What special dietary instructions should I follow?

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. 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.

Know the potential side effects of Viagra

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. 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. Our urology clinic in Albany, GA offers a comprehensive list of treatment options for erectile dysfunction—schedule an appointment to explore options that could be right for you. 50 mg PO ~1 hr before sexual activity; however, may be taken anywhere from 30 min to 4 hr before sexual activity Maximum dosing frequency is once per day Based on effectiveness and toleration, may increase dose to maximum of 100 mg or decrease to 25 mg Indicated for treatment of pulmonary arterial hypertension (PAH) (World Health Organization [WHO] Group I) to improve exercise ability and delay clinical worsening Revatio (PO), Liqrev: 20 mg PO TID; may titrate up to 80 mg TID, if required, based on symptoms and tolerability Revatio (IV): 10 mg IV bolus TID 10-mg IV predicted to provide pharmacologic effect equivalent to 10-mg oral dose Do not exceed recommended PO/IV dose Viagra, VibriqueSevere (eg, cirrhosis): Consider initial dose of 25 mg Severe (eg, cirrhosis): Consider initial dose of 25 mg RevatioMild or moderate (Child-Pugh A or B): No dose adjustment requiredSevere (Child-Pugh C): Not studied Mild or moderate (Child-Pugh A or B): No dose adjustment required Viagra, VibriqueMild or moderate (CrCl 30-80 mL/min): No dose adjustment requiredSevere (CrCl <30 mL/min): Consider initial dose of 25 mg Mild or moderate (CrCl 30-80 mL/min): No dose adjustment required Severe (CrCl <30 mL/min): Consider initial dose of 25 mg RevatioAny severity, including severe (CrCl <30 mL/min): No dose adjustment required Any severity, including severe (CrCl <30 mL/min): No dose adjustment required Indicated in children aged 1-17 years for treatment of pulmonary arterial hypertension (PAH) (WHO Group I) to improve exercise ability and, in pediatric patients too young to perform standard exercise testing, pulmonary hemodynamics thought to underly improvements in exercise 20-45 kg: 20 mg PO TID Maximum dose in pediatric patients not identified Based on experience in adults, dose may be titrated up to 40 mg TID, if required, based on symptoms and tolerability Mild or moderate (Child-Pugh A or B): No dose adjustment required Any severity, including severe (CrCl <30 mL/min): No dose adjustment required ≥65 years: 25 mg PO initially ~1 hr before sexual activity; however, may be taken anywhere from 30 min to 4 hr before sexual activity Maximum dosing frequency is once per day Based on effectiveness and toleration, may increase dose to maximum of 100 mg or decrease to 25 mg Indicated for treatment of pulmonary arterial hypertension (PAH) (World Health Organization [WHO] Group I) to improve exercise ability and delay clinical worsening PO: 20 mg PO TID; may titrate up to 80 mg TID, if required , based on symptoms and tolerability 10-mg IV predicted to provide pharmacologic effect equivalent to 10-mg oral dose Recommended PO/IV dose not to be exceeded Adding Revatio to bosentan does not have any beneficial effect on exercise capacity Clinical trials found no significant difference in response between elderly patients and younger adults; however, cautious dose selection should be considered in elderly because of greater frequency of decreased hepatic, renal, and cardiac function, as well as comorbid conditions and concomitant pharmacotherapy Compared with healthy younger volunteers, healthy elderly volunteers (≥65 years) had reduced clearance of sildenafil, resulting in approximately 84% and 107% higher plasma concentrations of sildenafil and its active N-desmethyl metabolite, respectively atazanaviratazanavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Never use combination with chronic sildenafil for PAH cobicistatcobicistat will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. When used chronically for PAH, sildenafil is contraindicated for use with cobicistat; if used for erectile dysfunction, do not exceed sildenafil 25 mg q48hr cobicistat will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Cobicistat is a CYP3A4 inhibitor; contraindicated with CYP3A4 cenforce viagra substrates for which elevated plasma concentrations are associated with serious and/or life-threatening events; contraindication applies to chronic administration of sildenafil for PAH; for ED, not to exceed 25 mg in 48 hr. nelfinavirnelfinavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nelfinavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

• Viagra was originally researched to treat cardiovascular diseases.
• The medication may cause temporary loss of blue-tinted vision.
• Sildenafil is used in both brand-name Viagra and generics.
• The drug’s impact on blood vessels was a significant scientific breakthrough.
• Side effects often subside within a few hours of intake.
• Viagra’s popularity spurred further research in sexual medicine.
• Men should watch for symptoms like chest pain or sudden vision changes.
• Consulting a healthcare provider ensures personalized and safe treatment.

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. 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.

• Over-the-counter Viagra is illegal and potentially dangerous.
• Misuse can lead to priapism, a painful prolonged erection.
• Viagra’s effectiveness may decrease with age or certain health conditions.
• It is important to be aware of potential drug interactions.
• Women should not take Viagra, as its safety for them is unproven.
• The drug’s development was based on research into nitric oxide’s role in vasodilation.
• Viagra is on the World Health Organization’s list of essential medicines.
• Attention to dosage is vital to avoid adverse effects.

Either increases effects of the other by pharmacodynamic synergism. Coadministration of vericiguat with PDE-5 inhibitors may result in additive viagra packaging 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.

What other information should I know?

Coadministration of apalutamide, a strong CYP3A4 inducer, with drugs that are CYP3A4 substrates can result in lower exposure to these medications. Avoid or substitute another drug for these medications when possible. Evaluate for loss of therapeutic effect if medication must be coadministered.

What Causes Erectile Dysfunction?

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

Study of Flexible Dose Escalation, Efficacy, and Safety with a Long-Term, Open-Label Extension

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. 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.

Drug details

Increased systemic exposure of these drugs may occur with clarithromycin; consider viagra tablet for sex 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. 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. 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.

What Medications Are Available?

If this happens, get medical attention immediately. It is best to take Viagra on an empty stomach. Avoid fatty foods, excessive alcohol, and marijuana. There are some common side effects like headache, flushing, abnormal vision, and cold like symptoms, plus others which can be serious. Talk with Albany Urology Clinic about all possible side effects before taking Viagra.

Frequently asked questions

Contact Albany Urology Clinic at 229-883-1503 if you are having issues getting and keeping an erection. Our urology clinic in Albany, GA offers a comprehensive list of treatment options for erectile dysfunction—schedule an appointment to explore options that could be right for you. 50 mg PO ~1 hr before sexual activity; however, may be taken anywhere from 30 min to 4 hr before sexual activity Maximum dosing frequency is once per day Based on effectiveness and toleration, may increase dose to maximum of 100 mg or decrease to 25 mg Indicated for treatment of pulmonary arterial hypertension (PAH) (World Health Organization [WHO] Group I) to improve exercise ability and delay clinical worsening Revatio (PO), Liqrev: 20 mg PO TID; may titrate up to 80 mg TID, if required, based on symptoms and tolerability Revatio (IV): 10 mg IV bolus TID 10-mg IV predicted to provide pharmacologic effect equivalent to 10-mg oral dose Do not exceed recommended PO/IV dose Viagra, VibriqueSevere (eg, cirrhosis): Consider initial dose of 25 mg Severe (eg, cirrhosis): Consider initial dose of 25 mg RevatioMild or moderate (Child-Pugh A or B): No dose adjustment requiredSevere (Child-Pugh C): Not studied Mild or moderate (Child-Pugh A or B): No dose adjustment required Viagra, VibriqueMild or moderate (CrCl 30-80 mL/min): No dose adjustment requiredSevere (CrCl <30 mL/min): Consider initial dose of 25 mg Mild or moderate (CrCl 30-80 mL/min): No dose adjustment required Severe (CrCl <30 mL/min): Consider initial dose of 25 mg RevatioAny severity, including severe (CrCl <30 mL/min): No dose adjustment required Any severity, including severe (CrCl <30 mL/min): No dose adjustment required Indicated in children aged 1-17 years for treatment of pulmonary arterial hypertension (PAH) (WHO Group I) to improve exercise ability and, in pediatric patients too young to perform standard exercise testing, pulmonary hemodynamics thought to underly improvements in exercise 20-45 kg: 20 mg PO TID Maximum dose in pediatric patients not identified Based on experience in adults, dose may be titrated up to 40 mg TID, if required, based on symptoms and tolerability Mild or moderate (Child-Pugh A or B): No dose adjustment required Any severity, including severe (CrCl <30 mL/min): No dose adjustment required ≥65 years: 25 mg PO initially ~1 hr before sexual activity; however, may be taken anywhere from 30 min to 4 hr before sexual activity Maximum dosing frequency is once per day Based on effectiveness and toleration, may increase dose to maximum of 100 mg or decrease to 25 mg Indicated for treatment of pulmonary arterial hypertension (PAH) (World Health Organization [WHO] Group I) to improve exercise ability and delay clinical worsening PO: 20 mg PO TID; may titrate up to 80 mg TID, if required , based on symptoms and tolerability 10-mg IV predicted to provide pharmacologic effect equivalent to 10-mg oral dose Recommended PO/IV dose not to be exceeded Adding Revatio to bosentan does not have any beneficial effect on exercise capacity Clinical trials found no significant difference in response between elderly patients and younger adults; however, cautious dose selection should be considered in elderly because of greater frequency of decreased hepatic, renal, and cardiac function, as well as comorbid conditions and concomitant pharmacotherapy Compared with healthy younger volunteers, healthy elderly volunteers (≥65 years) had reduced clearance of sildenafil, resulting in approximately 84% and 107% higher plasma concentrations of sildenafil and its active N-desmethyl metabolite, respectively atazanaviratazanavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Never use combination with chronic sildenafil for PAH cobicistatcobicistat will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. When used chronically for PAH, sildenafil is contraindicated for use with cobicistat; if used for erectile dysfunction, do not exceed sildenafil 25 mg q48hr cobicistat will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Generic Availability

Cobicistat is a CYP3A4 inhibitor; contraindicated with CYP3A4 cenforce viagra substrates for which elevated plasma concentrations are associated with serious and/or life-threatening events; contraindication applies to chronic administration of sildenafil for PAH; for ED, not to exceed 25 mg in 48 hr. nelfinavirnelfinavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nelfinavir will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Coadministration contraindicated if sildenafil used for pulmonary arterical hypertension. Reduce sildenafil dose if used for erectile dysfunction. 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. 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 viagra tablet for sex reduction of dosage for phosphodiesterase inhibitors. clarithromycin will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

What Precautions Should I Take?

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. PDE5 inhibitors have been shown to potentiate the hypotensive effects of organic nitrates. sildenafil increases effects of nitroglycerin rectal by additive vasodilation.

Interactions with other medications

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. Coadministration of vericiguat with PDE-5 inhibitors may result in additive viagra packaging hypotensive effects. alfuzosinsildenafil increases effects of alfuzosin by pharmacodynamic synergism.

What can I do to make Viagra work faster?

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. Avoid or substitute another drug for these medications when possible. Evaluate for loss of therapeutic effect if medication must be coadministered. conivaptanconivaptan will increase the level or effect of sildenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. 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.

• Viagra is a prescription medication used to treat erectile dysfunction in men.
• Its active ingredient is sildenafil citrate, which relaxes blood vessels.
• Viagra was approved by the FDA in 1998 as the first oral treatment for ED.
• It typically takes 30 to 60 minutes to start working after ingestion.
• The effects of Viagra can last up to 4-6 hours, depending on the individual.
• Common side effects include headaches, flushing, and nasal congestion.
• Viagra should not be taken with nitrates or certain heart medications.
• Overuse or misuse can lead to serious health complications.

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. 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.

• Viagra’s impact has driven social and medical discussions about ED.
• It is advisable to disclose all medications to your healthcare provider.
• Some individuals may require alternative treatments if Viagra is ineffective.
• The drug’s popularity has led to numerous online counterfeit products.
• Using genuine Viagra from licensed pharmacies ensures safety.
• Pregnant women and men with certain health issues should avoid Viagra.
• Common side effects tend to diminish as the body adjusts.
• Regular check-ups are recommended for men on long-term ED medication use.

sildenafil increases effects of doxazosin by pharmacodynamic synergism. 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.