Sildenafil Citrate 2.5 mg/mL Oral Liquid
Tuttle, Lexington, Ky.; G. Wells, Birmingham, Ala.; C. White, Mobile, Ala.; J. Young, Laguna Hills, Calif.; and N. Zinner, Torrance, Calif. Impotence and its medical and psychosocial correlates: results of the Massachusetts Male Aging Study. Sex-ual behavior in the human male. Efficacy and safety of intracavernosal alprostadil in men with erectile dysfunction. Treatment of men with erectile dysfunction with transurethral alprostadil. Clinical Guidelines Panel on Erectile Dysfunction: summary sildenafil 100mg blue pill report on the treatment of organic erectile dysfunction. Nitric oxide as a mediator of relaxation of the corpus cavernosum in response to nonadrenergic, noncholinergic neurotransmission.
Before Using
Four men (2 percent) withdrew because of treatment-related adverse effects (headache in two, intermittent flushing and blurred vision in one, and groin pain and headache in one). We found that sildenafil improves sexual function in men with erectile dysfunction. In keeping with sildenafil's mode of action (i.e., the drug causes erection only in response to sexual stimulation), the studies were performed entirely in a natural environment, which meant that we had to rely on the men's own reports of efficacy. However, the self-administered International Index of Erectile Function has a high degree of sensitivity and specificity for detecting treatment-related changes in men with erectile dysfunction.13 This questionnaire, together with the global-efficacy question, provided a comprehensive assessment of erectile function during a specified recall period (four weeks), and the event log provided information about individual events during treatment. The men's partners were questioned in each of the studies, and although the results corroborated the men's efficacy assessments, only 25 percent of the partners completed the optional questionnaire.
Impotence in diabetic men
Recognizing the fact that in most men erectile dysfunction is a multifactorial problem, we enrolled men with a broad variety of causes of erectile dysfunction. The identification of an organic abnormality does not establish it as the cause of erectile dysfunction.14 Conversely, failure to identify an organic cause does not prove a psychogenic origin. In the dose–response study, increasing doses of sildenafil (25 to 100 mg) were increasingly effective in improving the frequency of penetration and the maintenance of erections after penetration, the mean score for the erectile-function domain of the International Index, and the percentage of men reporting better erections. In the dose-escalation study, sildenafil treatment was associated with improvements in the frequency of penetration and the maintenance of erections after penetration. The therapeutic response to sildenafil was similar in men with various causes of erectile dysfunction. N Engl J Med 1992;326:90-94 Andersson, K-E, Wagner, G. Physiology of penile erection. The role of nitric oxide in the physiology of erection. Sildenafil: an orally active type 5 cyclic GMP-specific phosphodiesterase inhibitor for the treatment of penile erectile dysfunction. Sildenafil, a novel effective oral therapy for male erectile dysfunction. Br J Urol 1996;78:257-261 Rosen, RC, Riley, A, Wagner, G, Osterloh, IH, Kirkpatrick, J, Mishra, A. The International Index of Erectile Function (IIEF): a multidimensional scale for assessment of erectile dysfunction.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Viagra Generic | 150mg | 20 Pills | 55.02€ 52.40€ | |
| Viagra Generic | 150mg | 10 Pills | 36.73€ 34.98€ | |
| Viagra Generic | 25mg | 10 Pills | 25.19€ 23.99€ | |
| Kamagra | 100mg | 360 + 6 Pills | 839.95€ 799.95€ | |
| Viagra Generic | 50mg | 270 + 8 Pills | 198.48€ 189.03€ | |
| Kamagra Soft Tabs | 100mg | 32 Pills | 120.11€ 114.39€ | |
| Viagra Generic | 50mg | 30 + 4 Pills | 54.26€ 51.68€ | |
| Viagra Generic | 150mg | 360 + 10 Pills | 423.48€ 403.31€ | |
| Viagra Generic | 200mg | 10 Pills | 40.96€ 39.01€ | |
| Viagra Generic | 100mg | 20 Pills | 45.58€ 43.41€ | |
| Kamagra Oral Jelly | 100mg | 21 Sachets | 95.92€ 91.35€ | |
| Viagra Generic | 25mg | 20 Pills | 37.74€ 35.94€ | |
| Viagra Generic | 100mg | 90 + 6 Pills | 129.02€ 122.88€ | |
| Kamagra Soft Tabs | 100mg | 84 + 4 Pills | 233.05€ 221.95€ |
Riley, AJ, Athanasiadis, L. Impotence and its non-surgical management. Br J Clin Pract 1997;51:99-103 Any commercial reuse of NEJM Group content requires permission. From the Department of Urology, Boston University Medical Center, Boston (I.G. ); the Department of Urology, University of California, San Francisco (T.F.L. ); the Department of Urology, University of Southern California, Los Angeles, and the Male Clinic, Santa Monica, Calif.
Rights and permissions
Gleason, Tucson, Ariz.; F. Govier, Seattle; L. Hoffman, Gurnee, Ill.; J.M. Kaufman, Aurora, Colo.; I. Klimberg, Ocala, Fla.; V.
Safety and Tolerability
Longo, New London, Conn.; T. Malloy, Philadelphia; A. McCullough, New York; J. McMurray, Huntsville, Ala.; D.F. ; J Susset, Providence, R.I.; J. (H.P.-N.); the Department of Psychiatry, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, Piscataway, N.J. ); the Department of Urology, University of Virginia, Charlottesville (W.D.S. Select the format you want to export the citation of this publication. Multi-view semi-supervised adversarial attention network for drug repurposing, Computer Methods and Programs in Biomedicine, 282, (109406), (2026). Multi‐Target Mechanisms of Moroccan Aphrodisiac Plants: An Integrative Computational and Phytochemical Investigation, Food Science & Nutrition, 14, 5, (2026). Artificial intelligence in drug research and development: a review of methods and applications in drug repurposing, Briefings in Bioinformatics, 27, 3, (2026).
Chemical synthesis
The mean scores after sildenafil therapy approached those of normal men of the same age. The men we studied had a normal level of sexual desire, as might be expected of men with erectile dysfunction who enter a clinical trial,13 and sildenafil did not alter that level. Successful sexual intercourse was therefore a key end point for these men. Overall, the results of the efficacy assessments demonstrated that sildenafil significantly improved erectile function and quadrupled the success of intercourse, with effectiveness maintained for at least six months. Its main adverse effects were headache, flushing, dyspepsia, and visual disturbances and were usually mild.
Some side effects can be serious. If you experience any of the following symptoms, call your doctor immediately:
Only one man with a visual disturbance discontinued treatment, and he also had flushing. Few men discontinued sildenafil, suggesting a relatively high level of drug tolerability and acceptance. No man had priapism after sildenafil treatment. Sildenafil has modest vasodilator properties but no effect on heart rate. The American Urological Association Panel on the Treatment of Organic Erectile Dysfunction stated that the ultimate goal is a therapy that is reliable, has minimal side effects, and is simple to use.6 Sildenafil appears to meet these specifications. Endocrine-metabolic crosstalk in erectile dysfunction: mechanistic insights and therapeutic implications, International Journal of Impotence Research, (2026). Therapeutic applications of phosphodiesterase inhibitors in male reproductive health: narrative review, Sexual Medicine Reviews, 14, 2, (2026). Oral suspension versus tablet sildenafil for erectile dysfunction: a prospective multicenter comparative study on patient satisfaction, International Journal of Impotence Research, (2026). Low‐intensity shockwave therapy for erectile dysfunction: An abridged Cochrane review, BJU International, 137, 6, (949-957), (2026). Current state of the problem, Andrology and Genital Surgery, 25, 4, (33-40), (2026). Emerging Trends and Research Focus in Erectile Dysfunction Treatment: A 1993–2023 Bibliometric Analysis, Andrologia, 2026, 1, (2026).
Why is this medication prescribed?
Auerbach, Newport Beach, Calif.; A.L. Burnett, Baltimore; R. Castellanos, Fort Myers, Fla.; L. Charles, Stratford, N.J.; F. Eid, New York; R.
How does sildenafil work (mechanism of action)?
Feldman, Waterbury, Conn.; W. Fitch III, San Antonio, Tex. ; T. Garland, Lawrence, N.J.; M. Gittelman, North Miami, Fla.; D. Sildenafil is commonly used for the following conditions. Erectile dysfunction, a condition where you have trouble getting or keeping an erection Pulmonary arterial hypertension, a condition where you have high blood pressure in the blood vessels that carry blood from your heart to your lungs Sildenafil may also be used for other conditions as determined by your healthcare provider.
| Dose (mg) | Typical Usage Frequency | Time to Onset (minutes) | Duration of Effect (hours) | Notes |
|---|---|---|---|---|
| 50 | Once or twice daily | 30-60 | 4-6 | Starting dose for most patients |
| 100 | Once daily | 30-60 | 4-6 | Common for moderate ED |
| 25 | As needed | 30-60 | 4-6 | For mild ED |
| 10 | As needed | 30-60 | 4-6 | Lower dose option |
Sildenafil works by blocking an enzyme in the body called PDE5, which helps relax certain blood vessels.
Usual Adult Dose for Pulmonary Hypertension
Oral therapy permits discreet administration and is less invasive than some other treatment options, including injections into the corpus cavernosum, transurethral drug delivery, and prosthesis implantation. Goldstein, Lue, Padma-Nathan, Rosen, and Steers have served as consultants to Pfizer, manufacturer of sildenafil, as well as to other companies making products for the treatment of erectile dysfunction. We are indebted to all the investigators who participated in the trials; to Dr. Ian Osterloh and Dr. David Cox of Pfizer for their help with the study design and logistics; to Dr.
Cessation and Adverse Effects of Treatment
Michael Collins and Dr. Michael Smith of Pfizer for their assistance with data analysis; and to Dr. Patricia Leinen and Dr. Michael Sweeney for aid in the preparation of the manuscript. The other members of the Sildenafil Study Group are S. For erectile dysfunction, it increases blood flow to the penis when aroused. This makes it easier to get and keep an erection. For pulmonary arterial hypertension, sildenafil relaxes the blood vessels in the lungs. This lowers blood pressure and reduces strain on the heart. 10 mg/mL powder for oral suspension 20 mg, 25 mg, 50 mg, 100 mg oral tablets Sildenafil is also available in an injectable form that is usually given by a healthcare provider in a hospital or clinic. Sildenafil oral tablets should be stored at room temperature, between 68 F to 77 F (20 C to 25 C). It can be exposed to temperatures between 59 F to 86 F (15 C to 30 C) for shorter periods of time, such as when transporting it. Sildenafil oral liquid should be stored at room temperature below 86 F (30 C) or in the refrigerator, between 36 F to 46 F (2 C to 8 C). Throw away any remaining liquid 60 days after it has been mixed for you by a pharmacist or healthcare professional. Sildenafil injection is usually given by a healthcare provider in a hospital or clinic. You will not store it at home.
- Sildenafil may cause dizziness; avoid driving until effects are known.
- Seek immediate medical help if an erection lasts more than 4 hours.
- Do not mix sildenafil with other ED medications unless directed.
The most common side effects of sildenafil are listed below. These side effects may vary depending on the condition that is being treated.
- Sildenafil is sometimes used off-label for other medical conditions.
- Continuous use without medical supervision is not recommended.
- Follow your provider's instructions for frequency of use.
Tell your healthcare provider if you have any of these side effects that bother you. Pain in your muscles, back, arms, or legs There may be other side effects of sildenafil that are not listed here. Contact your healthcare provider if you think you are having a side effect of a medicine.
English 
German