Certain medicines should not be used at or around the time of
What other drugs will affect sildenafil?
Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take. Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines. Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. eating food or eating certain types
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of food since interactions may occur.
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Vasodilator therapy after heart transplantation: effects of inhaled nitric oxide and intravenous prostacyclin prostaglandin E1 and SNP The cGMP phosphodiesterase inhibitor zaprinast enhances the effect of nitric oxide Sildenafil is a pulmonary vasodilator in awake lambs with acute pulmonary hypertension Effects of dipyridamole and inhaled nitric oxide in pediatric patients with pulmonary hypertension Sildenafil augments the effect of inhaled nitric oxide for postoperative pulmonary hypertensive crises Mychaskiw, G. ∙ Sachdev, V. ∙ Heath, B.J. Sildenafil (Viagra) facilitates weaning of inhaled nitric oxide following placement of a biventricular-assist device Skip to main contentSkip to articleKeywordsIntroductionSection snippetsStudy design and patient populationResultsDiscussionAcknowledgementsReferences (23)et al.Oral sildenafil in the treatment of erectile dysfunctionNew England Journal of MedicineView full text Erectile dysfunction (ED) is a common complication of diabetes and an important cause of decreased quality of life in men with diabetes (NIH Consensus Conference, 1993). The prevalence of ED of any degree in men aged 40 to 70 years was estimated to be 52% in the Massachusetts Male Aging Study, with a prevalence of 25% for moderate ED and 10% for complete ED (Feldman, Goldstein, Hatzichristou, Krane, & McKinlay, 1994).
Allergic reaction
ED occurs at an earlier age in men with diabetes than in men in the general population (Whitehead & Klyde, 1990), and its frequency has been reported to be higher in people with diabetes compared with those without diabetes in some but not all studies Fairburn et al., 1982, Malgrange et al., 1990, Miccoli et al., 1987. ED in diabetic men has been associated with diabetic neuropathy (Saenz de Tejada & Goldstein, 1988), peripheral vascular disease (Braunstein, 1987), poor glycemic control (McCulloch, Young, Prescott, Campbell, & Clarke, 1984), use of specific types of medications Muller et al., 1991, Wiles, 1992, and increased age (McCulloch et al., 1984). In response to sexual stimulation, nonadrenergic noncholinergic nerves and endothelial cells of the arterioles in the penis release nitric oxide. This in turn stimulates the formation of cyclic 3′,5′-guanosine monophosphate (cGMP) by guanylate cyclase. cGMP then affects the relaxation of the smooth muscles of the corpora cavernosa.
Incidence not known
Sildenafil is a potent and competitive inhibitor of the PDE 5. Sildenafil has been shown to be an effective and well-tolerated treatment in patients with ED of various etiologies Boolell et al., 1996, Goldstein et al., 1998. This study was designed to determine if sildenafil administered orally in single doses effectively and safely improved penile erections in diabetic men with ED. Two hundred eighty-two diabetic men entered the study (mean age 46 years, range 36–68) with a mean duration of penile ED of 3.6 years (range 2.5–12). None of the patients had received other treatment for male ED for at least 4 weeks before the start of the study. Using alcohol or tobacco with certain
- Some men may experience minor flushing after taking sildenafil.
- If an adverse reaction occurs, stop medication and contact your doctor.
- Be aware of possible symptoms like sudden vision loss.
medicines may also cause interactions to occur.
- Common side effects include headache, flushing, and nasal congestion.
- Serious side effects are rare but can include vision changes and priapism.
- Report any severe reactions to your doctor immediately.
Using this medicine with any of the following may cause an increased
Related/similar drugs
Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully. Appropriate studies have not been performed on the relationship of age to the effects of sildenafil in children younger than 1 year of age. Safety and efficacy have not been established. Sildenafil should never be used in children for erectile dysfunction.
Study design and patient population
In general, sildenafil should not be used for pulmonary arterial hypertension in children, especially for chronic use. Use of sildenafil oral film is not indicated for use in the pediatric population. Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of sildenafil in the elderly. However, elderly patients are more likely to have age-related liver, kidney, or heart problems, which may require caution and an adjustment in the dose for patients receiving sildenafil. There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. risk of certain side effects but may be unavoidable in some cases.
| Parameter | Description | Typical Value | Notes |
|---|---|---|---|
| Absorption Rate | How quickly sildenafil enters bloodstream | Rapid | Peaks in 30-120 minutes |
| Bioavailability | Percentage of dose reaching systemic circulation | ~40% | Affected by food intake |
| Half-life | Time for plasma concentration to reduce by half | 3-5 hours | Determines dosing frequency |
| Peak Plasma Concentration | Maximum concentration after dose | 1 hour | Influenced by gastric emptying and food intake |
If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions
| Condition | Caution / Notes | Risk Factors |
|---|---|---|
| Cardiovascular disease | Use with caution | Heart failure, recent MI |
| Concomitant nitrate use | Absolute contraindication | Risk of severe hypotension |
| Severe hepatic impairment | May require dose adjustment | Reduced clearance |
| Retinitis Pigmentosa | Cautious use | Potential for vision disturbances |
about the use of food, alcohol, or tobacco.
How should I take sildenafil?
Weigh the potential benefits against the potential risks before taking this medication while breastfeeding. Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive. The presence of other medical problems
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These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly. The penis is one of the areas where this enzyme works. Erectile dysfunction is a condition where the penis does not harden and expand when a man is sexually excited, or when he cannot keep an erection. When a man is sexually stimulated, his body's normal response is to increase blood flow to his penis to produce an erection. By controlling the enzyme, sildenafil helps to maintain an erection after the penis is stroked.
What should I tell my healthcare provider before taking sildenafil?
Without physical action to the penis, such as that occurring during sexual intercourse, sildenafil will not work to cause an erection. Sildenafil is also used in both men and women to treat the symptoms of pulmonary arterial hypertension. This is a type of high blood pressure that occurs between the heart and the lungs. When hypertension occurs in the lungs, the heart must work harder to pump enough blood through the lungs. Sildenafil works on the PDE5 enzyme in the lungs to relax the blood vessels.
The International Index of Erectile Function
This will increase the supply of blood to the lungs and reduce the workload of the heart. This sildenafil pink pill medicine is available only with your doctor's prescription. This product is available in the following dosage forms: In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered: Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. may affect the use of this medicine.
What happens if I miss a dose?
Exclusion criteria (Table 1) included penile anatomical defects; a primary diagnosis of another sexual disorder, major hematological, renal or hepatic illnesses; any major psychiatric All patients were seen with their partners and interviewed about their sexual activity and patient's erectile function. Two hundred eighty two patients were recruited, but only 262 (93%) completed the whole randomized trial study (134 of 144 in the sildenafil group and 128 of 138 in the placebo group) (Fig. At baseline, the study and placebo groups were similar in demographic and clinical characteristics (Table 2). The majority of patients (83%) had Type 2 diabetes, were between the age of The increased frequency of impotence in the male diabetic has long been recognized and has a multifactorial etiology that includes psychogenic factors, autonomic neuropathy, vascular disease, and drug intake. Several studies have demonstrated a high prevalence (35% to 75%) of ED in diabetic men McCulloch et al., 1980, Rubin & Babbott, 1958, Zemel, 1988.
Missed Dose
Sildenafil is a novel, orally active agent that has long-term efficacy and safety in treating men with ED of mixed etiology (Chiristiansen, We thank Mrs. Nayyer Shafiei Fazel for secretarial assistance, Dr. A. A. Kolahi for statistical analysis, and Dr.
Long-term efficacy and safety of oral Viagra (sildenafil citrate) in men with erectile dysfunction and the effect of randomized treatment withdrawal
M. H. Ziraksaz for help in the running of study. et al.Impotence and its medical and psychosocial correlates: results of the Massachusetts Male Aging StudyJournal of Urology(1994) et al.The International Index of Erectile FunctionUrology(1997) sildenafil oral jelly 100mg lovegra et al.Advanced glycation end products in human penisUrology(1997) et al.Diabetes-related impotence in the elderlyClinics in Geriatric Medicine(1990) et al.Sildenafil: an orally active type 5 cyclic GMP-specific phosphodiesterase inhibitor for the treatment of penile erectile dysfunctionInternational Journal of Impotence Research(1996) et al.Sildenafil, a novel effective oral therapy for male erectile dysfunctionBritish Journal of Urology(1996) Impotence in diabetic menMount Sinai Journal of Medicine(1987) et al.Long-term efficacy and safety of oral Viagra (sildenafil citrate) in men with erectile dysfunction and the effect of randomized treatment withdrawalInternational Journal of Impotence Research(2000) et al.The effects of diabetes on male sexual functionClinics in Endocrinology and Metabolism(1982) Sildenafil is used to treat erectile dysfunction (also called sexual impotence). Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors.