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SILDENAFIL CRESCENT is a brand name for Sildenafil. The medicine, its uses, side effects and dosage are the same regardless of brand.
Used for: Sildenafil is indicated in adult men with erectile dysfunction, which is the inability to achieve or maintain a penile erection sufficient for satisfactory sexual performance. In order for sildenafil to be effective, sexual stimulation is required.
Verbatim from this product's MHRA label. Tap a section to expand.
Posology Use in adults The recommended dose is 50mg taken as needed approximately one hour before sexual activity. Based on efficacy and tolerability, the dose may be increased to 100mg or decreased to 25mg. The maximum recommended dose is 100mg.
The maximum recommended dosing frequency is once per day. 2). Special populations Elderly patients Dosage adjustments are not required in elderly patients (≥65 years old). Patients with renal impairment The dosing recommendations described in ‘Use in adults’ apply to patients with mild to moderate renal impairment (creatinine clearance = 30 - 80 ml/min).
Since sildenafil clearance is reduced in patients with severe renal impairment (creatinine clearance <30 ml/min) a 25mg dose should be considered. Based on efficacy and tolerability, the dose may be increased step-wise to 50mg up to 100mg as necessary.
g. cirrhosis) a 25mg dose should be considered. Based on efficacy and tolerability, the dose may be increased step-wise to 50mg up to 100mg as necessary. Paediatric population Sildenafil film-coated tablets is not indicated for individuals below 18 years of age.
5). In order to minimise the potential of developing postural hypotension in patients receiving alpha-blocker treatment, patients should be stabilised on alpha-blocker therapy prior to initiating sildenafil treatment. 5). Method of administration For oral use.
Summary of the safety profile The safety profile of sildenafil is based on 9570 patients in 74 double-blind placebo-controlled clinical studies. The most commonly reported adverse reactions in clinical studies among sildenafil treated patients were headache, flushing, dyspepsia, nasal congestion, dizziness, nausea, hot flush, visual disturbance, cyanopsia and vision blurred.
Adverse reactions from post-marketing surveillance has been gathered covering an estimated period >10 years. Because not all adverse reactions are reported to the Marketing Authorisation Holder and included in the safety database, the frequencies of these reactions cannot be reliably determined.
Tabulated list of adverse reactions In the table below all medically important adverse reactions, which occurred in clinical trials at an incidence greater than placebo are listed by system organ class and frequency (very common (≥1/10), common (≥1/100 to <1/10), uncommon (≥1/1,000 to <1/100), rare (≥1/10,000 to <1/1,000).
In addition, the frequency of medically important adverse reactions reported from post-marketing experience is included as not known. Within each frequency grouping, undesirable effects are presented in order of decreasing seriousness.
Table 1:
Medically important adverse reactions reported at an incidence greater than placebo in controlled clinical studies and medically important adverse reactions reported through postmarketing surveillance System Organ Class Very common (≥ 1/10) Common (≥ 1/100 and <1/10) Uncommon (≥ 1/1000 and <1/100) Rare (≥ 1/10000 and <1/1000) Infections and infestations Rhinitis Immune system disorders Hypersensivity Nervous system disorders Headache Dizziness Somnolence, Hypoaesthesia Cerebrovascular accident, Transient ischaemic attack, Seizure,* Seizure recurrence,* Syncope Eye disorders Visual colour distortions* *, Visual disturbance, Vision blurred Lacrimation disorders***, Eye pain, Photophobia, Photopsia, Ocular hyperaemia, Visual brightness, Conjunctivitis Non-arteritic anterior ischaemic optic neuropathy (NAION), * Retinal vascular occlusion,* Retinal haemorrhage, Arteriosclerotic retinopathy, Retinal disorder, Glaucoma, Visual field defect, Diplopia, Visual acuity reduced, Myopia, Asthenopia, Vitreous floaters, Iris disorder, Mydriasis, Halo vision, Eye oedema, Eye swelling, Eye disorder, Conjunctival hyperaemia, Eye irritation, Abnormal sensation in eye, Eyelid oedema, Scleral discoloration Ear and labyrinth disorders Vertigo, Tinnitus Deafness Cardiac disorders Tachycardia, Palpitations Sudden cardiac death,* Myocardial infarction, Ventricular arrhythmia,* Atrial fibrillation, Unstable angina Vascular disorders Flushing, Hot flush Hypertension, Hypotension Respiratory, thoracic and mediastinal disorders Nasal congestion Epistaxis, Sinus congestion Throat tightness, Nasal oedema, Nasal dryness Gastrointestinal disorders Nausea, Dyspepsia Gastrooesophag ael reflux disease, Vomiting, Abdominal pain upper, Dry mouth Hypoaesthesia oral Skin and subcutaneous tissue disorders Rash Stevens-Johnson Syndrome (SJS),* Toxic Epidermal Necrolysis (TEN)* Musculoskeletal and connective tissue disorders Myalgia, Pain in extremity Renal and urinary disorders Haematuria Reproductive system and breast disorders Penile haemorrhage, Priapism,* Haematospermia, Erection increased General disorders and administration site condition Chest pain, Fatigue, Feeling hot Irritability Investigations Heart rate increased *Reported during post-marketing surveillance only **Visual colour distortions: Chloropsia, Chromatopsia, Cyanopsia, Erythropsia and Xanthopsia ***Lacrimation disorders: Dry eye, Lacrimal disorder and Lacrimation increased Reporting of suspected adverse reactions Reporting suspected adverse reactions after authorisation of the medicinal product is important.
A medical history and physical examination should be undertaken to diagnose erectile dysfunction and determine potential underlying causes, before pharmacological treatment is considered. Cardiovascular risk factors Prior to initiating any treatment for erectile dysfunction, physicians should consider the cardiovascular status of their patients, since there is a degree of cardiac risk associated with sexual activity.
1). Prior to prescribing sildenafil, physicians should carefully consider whether their patients with certain underlying conditions could be adversely affected by such vasodilatory effects, especially in combination with sexual activity.
, aortic stenosis, hypertrophic obstructive cardiomyopathy), or those with the rare syndrome of multiple system atrophy manifesting as severely impaired autonomic control of blood pressure. 3). Serious cardiovascular events, including myocardial infarction, unstable angina, sudden cardiac death, ventricular arrhythmia, cerebrovascular haemorrhage, transient ischaemic attack, hypertension and hypotension have been reported post-marketing in temporal association with the use of sildenafil.
Most, but not all, of these patients had pre-existing cardiovascular risk factors. Many events were reported to occur during or shortly after sexual intercourse and a few were reported to occur shortly after the use of sildenafil without sexual activity.
It is not possible to determine whether these events are related directly to these factors or to other factors. Priapism Agents for the treatment of erectile dysfunction, including sildenafil, should be used with caution in patients with anatomical deformation of the penis (such as angulation, cavernosal fibrosis or Peyronie’s disease), or in patients who have conditions which may predispose them to priapism (such as sickle cell anaemia, multiple myeloma or leukaemia).
Prolonged erections and priapism have been reported with sildenafil in post- marketing experience. In the event of an erection that persists longer than 4 hours, the patient should seek immediate medical assistance. If priapism is not treated immediately, penile tissue damage and permanent loss of potency could result.
1. 1), sildenafil was shown to potentiate the hypotensive effects of nitrates, and its co-administration with nitric oxide donors (such as amyl nitrite) or nitrates in any form is therefore contraindicated. 5). g. patients with severe cardiovascular disorders such as unstable angina or severe cardiac failure).
4). The safety of sildenafil has not been studied in the following sub-groups of patients and its use is therefore contraindicated: severe hepatic impairment, hypotension (blood pressure <90/50 mmHg), recent history of stroke or myocardial infarction and known hereditary degenerative retinal disorders such as retinitis pigmentosa (a minority of these patients have genetic disorders of retinal phosphodiesterases).
Not medical advice. Always read the patient information leaflet and follow your prescriber or pharmacist.
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Concomitant use with other PDE5 inhibitors or other treatments for erectile dysfunction The safety and efficacy of combinations of sildenafil with other PDE5 Inhibitors, or other pulmonary arterial hypertension (PAH) treatments containing sildenafil (REVATIO), or other treatments for erectile dysfunction have not been studied.
Therefore the use of such combinations is not recommended. 8). 8). 3). 5). 5). This is most likely to occur within 4 hours post sildenafil dosing. In order to minimise the potential for developing postural hypotension, patients should be hemodynamically stable on alphablocker therapy prior to initiating sildenafil treatment.
2). In addition, physicians should advise patients what to do in the event of postural hypotensive symptoms. Effect on bleeding Studies with human platelets indicate that sildenafil potentiates the antiaggregatory effect of sodium nitroprusside in vitro.
There is no safety information on the administration of sildenafil to patients with bleeding disorders or active peptic ulceration. Therefore sildenafil should be administered to these patients only after careful benefit-risk assessment.
Excipients The film coating of the tablets contains lactose. Sildenafil film-coated tablets should not be administered to men with rare hereditary problems of galactose intolerance, Lapp lactase deficiency or glucose-galactose malabsorption.
This medicine contains less than 1 mmol sodium (23 mg) per tablet that is to say essentially ‘sodium free’. Women Sildenafil film-coated tablets is not indicated for use by women.