Veterans Health Library

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

Storage Condition	Temperature Range	Light Exposure	Shelf Life	Notes
Cool, dry place	15-25°C	Keep away from direct light	2 years	Keep out of reach of children
Avoid freezing	-	Yes		Protect from moisture
Bottle tightly closed	-	-		Prevent contamination
Store away from heat sources	-	-		Maintain stability

lonafarnib will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. lopinavirlopinavir will increase the level or effect of vardenafil levitra professional for sale by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors lopinavir will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Precaution/Contraindication	Explanation	Alternatives or Actions
Use with nitrate medications	Can cause severe hypotension	Consult doctor before use
Heart conditions	Risk of cardiovascular events	Medical evaluation recommended
Liver or kidney impairment	Affects drug metabolism	Dose adjustment needed
Allergies to ingredients	Risk of allergic reactions	Check ingredient list

Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors lumefantrinelumefantrine will decrease the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

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ketoconazole will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. lapatiniblapatinib will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors lapatinib will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors larotrectiniblarotrectinib will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors larotrectinib will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Drugs and Foods to Avoid:

Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors lenacapavirlenacapavir will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Lencapavir may increase CYP3A4 substrates initiated within 9 months after last SC dose of lenacapavir, which may increase potential risk of adverse reactions of CYP3A4 substrates. lenacapavir will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Limit vardenafil dose to 2.5 mg/24 lithiumlithium and vardenafil both increase QTc interval. lithium and vardenafil both increase QTc interval. lumefantrine will decrease the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

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mavorixaformavorixafor will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

• Liquid Levitra is often preferred for its ease of swallowing.
• It may be used when swallowing pills is difficult.
• Proper storage preserves its potency.

Monitor QTc during treatment in patients with risk factors for QTc prolongation (eg, coadministered medications that increase mavorixafor exposure or other drugs with a high risk to prolong the QTc interval).

How do these drugs work?

granisetrongranisetron and vardenafil both increase QTc interval. granisetron and vardenafil both increase QTc interval. grapefruitgrapefruit will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. grapefruit will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. griseofulvingriseofulvin will decrease the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

What is vardenafil used for?

griseofulvin will decrease the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. haloperidolhaloperidol and vardenafil both increase QTc interval. haloperidol and vardenafil both increase QTc interval. hydrocortisonehydrocortisone will decrease the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. hydrocortisone will decrease the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Cancer treatments

hydroxyzinehydroxyzine and vardenafil both increase QTc interval. hydroxyzine and vardenafil both increase QTc interval. ibrexafungerpibrexafungerp will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors imatinibimatinib will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors imatinib will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Mavorixafor dose reduction or discontinuation may be required. mavorixafor will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Penile injections

The risk of QT prolongation may increase in patients with electrolyte abnormalities (such as hypokalemia and hypocalcemia), patients with conditions that have potential to cause electrolyte imbalance (such as renal impairment), or patients taking other drugs affecting electrolyte balance or QT prolongation; avoid this drug in patients with known QT prolongation or ventricular arrhythmias, including a history of torsade de pointes; monitor electrolytes during treatment fosphenytoinfosphenytoin will decrease the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. fosphenytoin will decrease the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. fostamatinibfostamatinib will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors fostamatinib will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors fostemsavirvardenafil and fostemsavir both increase QTc interval.

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QTc prolongation reported with higher than recommended doses of fostemsavir. vardenafil and fostemsavir both increase QTc interval. gemifloxacingemifloxacin and vardenafil both increase QTc interval. gemifloxacin and vardenafil both increase QTc interval. gepirone and vardenafil both increase QTc interval.

Are you currently using Vardenafil (Levitra, Staxyn)?

gepotidacingepotidacin increases levels of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. If possible, avoid with sensitive substrates that are levitra now online are extensively metabolized by CYP3A4 and have a narrow therapeutic index. If unable to avoid, monitor or modify substrate dose according to its prescribing information. gepotidacin increases levels of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. gilteritinib and vardenafil both increase QTc interval. Monitor for adverse effects of sensitive CYP3A4 substrates if coadministered with mavorixafor (a weak CYP3A4 inhibitor). methylprednisolone will decrease the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

• Patients should inform their doctor of all medications.
• Interactions with nitrate drugs are dangerous.
• Always consult before combining with other medicines.

metronidazolemetronidazole will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

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Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors Drugs that are known to prolong the QTc interval may have an increased the risk of ventricular arrhythmias. Drugs that are known to prolong the QTc interval may have an increased the risk of ventricular arrhythmias. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors isavuconazonium sulfate will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors isoniazidisoniazid will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors isoniazid will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Preparing the injection

Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors istradefyllineistradefylline will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Istradefylline 40 mg/day increased peak levels and AUC of CYP3A4 substrates in clinical trials. This levitra no prescription online effect was not observed with istradefylline 20 mg/day. Consider dose reduction of sensitive CYP3A4 substrates. istradefylline will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

If you develop priapism

itraconazoleitraconazole will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. itraconazole will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. ivacaftorivacaftor will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors ivacaftor will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors ketoconazoleketoconazole will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors metronidazole will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.

Dosage	Frequency	Onset Time	Duration of Effect	Notes
10 mL (200 mg)	Once 30 minutes before	30-60 min	Up to 4 hours	Maximum recommended dose
5 mL (100 mg)	As needed	30 min	3-4 hours	Consult doctor for tailored dose
15 mL (300 mg)	24 hours apart	30-60 min	Up to 4 hours	Do not exceed recommended dose

Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors Use alternatives if available.mifepristone will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.