The following serious adverse reactions with the use of LEVITRA (vardenafil) are discussed elsewhere in the labeling:
Cardiovascular Effects [see CONTRAINDICATIONS and WARNINGS AND PRECAUTIONS] Priapism [see WARNINGS AND PRECAUTIONS] Effects on Eye [see WARNINGS AND PRECAUTIONS] Sudden Hearing Loss [see WARNINGS AND PRECAUTIONS] QT Prolongation [see WARNINGS AND PRECAUTIONS]
Clinical Studies Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
LEVITRA was administered to over 4430 men (mean age 56, range 18-89 years; 81% White, 6% Black, 2% Asian, 2% Hispanic and 9% Other) during controlled and uncontrolled clinical trials worldwide. Over 2200 patients were treated for 6 months or longer and 880 patients were treated for at least 1 year.
In placebo-controlled clinical trials, the discontinuation rate due to adverse events was 3.4% for LEVITRA compared to 1.1% for placebo.
When LEVITRA was taken as recommended in placebo-controlled clinical trials, the following adverse reactions were reported (see Table 1).
Table 1: Adverse Reactions Reported By ≥ 2% of Patients Treated with LEVITRA and More Frequent on Drug than Placebo in Fixed and Flexiblea Dose Randomized, Controlled Trials of 5 mg, 10 mg, or 20 mg Vardenafil
Adverse Reaction Percentage of Patients Reporting Reactions
N = 1199 LEVITRA
N = 2203
Headache 4% 15%
Flushing 1% 11%
Rhinitis 3% 9%
Dyspepsia 1% 4%
Accidental Injuryb 2% 3%
Sinusitis 1% 3%
Flu Syndrome 2% 3%
Dizziness 1% 2%
Increased Creatine Kinase 1% 2%
Nausea 1% 2%
a Flexible dose studies started all patients at LEVITRA 10 mg and allowed decrease in dose to 5 mg or increase in dose to 20 mg based on side effects and efficacy.
b All the events listed in the above table were deemed to be adverse drug reactions with the exception of accidental injury.
Back pain was reported in 2.0% of patients treated with LEVITRA and 1.7% of patients on placebo.
Placebo-controlled trials suggested a dose effect in the incidence of some adverse reactions (headache, flushing, dyspepsia, nausea, and rhinitis) over the 5 mg, 10 mg, and 20 mg doses of LEVITRA.
All Vardenafil Studies
LEVITRA film-coated tablets and vardenafil orally disintegrating tablets have been administered to over 17,000 men (mean age 54.5, range 18-89 years; 70% White, 5% Black, 13% Asian, 4% Hispanic and 8% Other) during controlled and uncontrolled clinical trials worldwide. The number of patients treated for 6 months or longer was 3357, and 1350 patients were treated for at least 1 year.
In the placebo-controlled clinical trials for LEVITRA film-coated tablets and vardenafil orally disintegrating tablets, the discontinuation rate due to adverse events was 1.9% for vardenafil compared to 0.8% for placebo.
The following section identifies additional, less frequent adverse reactions ( < 2%) reported during the clinical development of LEVITRA film-coated tablets and vardenafil orally disintegrating tablets. Excluded from this list are those adverse reactions that are infrequent and minor, those events that may be commonly observed in the absence of drug therapy, and those events that are not reasonably associated with the drug:
Body as a whole: allergic edema and angioedema, feeling unwell, allergic reactions, chest pain
Auditory: tinnitus, vertigo
Cardiovascular: palpitation, tachycardia, angina pectoris, myocardial infarction, ventricular tachyarrhythmias, hypotension
Digestive: nausea, gastrointestinal and abdominal pain, dry mouth, diarrhea, gastroesophageal reflux disease, gastritis, vomiting, increase in transaminases
Musculoskeletal: increase in creatine phosphokinase (CPK), increased muscle tone and cramping, myalgia
Nervous: paresthesia and dysesthesia, somnolence, sleep disorder, syncope, amnesia, seizure
Respiratory: dyspnea, sinus congestion
Skin and appendages: erythema, rash
Ophthalmologic: visual disturbance, ocular hyperemia, visual color distortions, eye pain and eye discomfort, photophobia, increase in intraocular pressure, conjunctivitis
Urogenital: increase in erection, priapism
The following adverse reactions have been identified during post approval use of LEVITRA. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to estimate their frequency or establish a causal relationship to drug exposure.
Non-arteritic anterior ischemic optic neuropathy (NAION), a cause of decreased vision including permanent loss of vision, has been reported rarely postmarketing in temporal association with the use of PDE5 inhibitors, including vardenafil. Most, but not all, of these patients had underlying anatomic or vascular risk factors for development of NAION, including but not necessarily limited to: low cup to disc ratio (“crowded disc”), age over 50, diabetes, hypertension, coronary artery disease, hyperlipidemia and smoking. It is not possible to determine whether these events are related directly to the use of PDE5 inhibitors, to the patient’s underlying vascular risk factors or anatomical defects, to a combination of these factors, or to other factors
Visual disturbances including vision loss (temporary or permanent), such as visual field defect, retinal vein occlusion, and reduced visual acuity, have also been reported rarely in postmarketing experience. It is not possible to determine whether these events are related directly to the use of vardenafil.
Seizure, seizure recurrence and transient global amnesia have been reported postmarketing in temporal association with vardenafil.
Cases of sudden decrease or loss of hearing have been reported postmarketing in temporal association with the use of PDE5 inhibitors, including vardenafil. In some cases, medical conditions and other factors were reported that may have also played a role in the otologic adverse events. In many cases, medical follow-up information was limited. It is not possible to determine whether these reported events are related directly to the use of vardenafil, to the patient’s underlying risk factors for hearing loss, a combination of these factors, or to other factors