Sildenafil is indicated for the treatment of 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.
Sildenafil tablets are for oral administration.Use in Adults:Film-coated tablets:For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity. Based on effectiveness and toleration, the dose may be increased to a maximum recommended dose of 100 mg or decreased to 25 mg. The maximum recommended dose is 100 mg. The maximum recommended dosing frequency is once per day.Use in Patients with Impaired Renal Function:Dosage adjustments are not required in 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 25 mg dose should be considered.Use in Patients with Impaired Hepatic Function:Since sildenafil clearance is reduced in patients with hepatic impairment (e.g., cirrhosis), a 25 mg dose should be considered.Use in Patients Using Other Medications:Given the extent of the interaction with patients receiving concomitant therapy with ritonavir (see Interactions), it is recommended not to exceed a maximum single dose of 25 mg of sildenafil in a 48-hour period. A starting dose of 25 mg should be considered in patients receiving concomitant treatment with the CYP3A4 inhibitors (e.g., erythromycin, saquinavir, ketoconazole, itraconazole), see Interactions. In order to minimize the potential for developing postural hypotension, patients should be stable on alpha-blocker therapy prior to initiating sildenafil treatment. In addition, initiation of sildenafil at lower doses should be considered (see Precautions and Interactions).Use in Children:Sildenafil is not indicated for use in children (<18 years old).Use in Elderly Men:Dosage adjustments are not required in elderly patients.
In studies with healthy volunteers of single doses up to 800 mg, adverse events were similar to those seen at lower doses but incidence rates and severities were increased. In cases of overdose, standard supportive measures should be adopted as required. Renal dialysis is not expected to accelerate clearance as sildenafil is highly bound to plasma proteins and it is not eliminated in the urine.
May be taken with or without food.
Use of sildenafil is contraindicated in patients with a known hypersensitivity to any component of the tablet including microcrystalline cellulose, calcium hydrogen phosphate, croscarmellose sodium, magnesium stearate, hydroxypropyl methylcellulose, titanium dioxide, lactose, triacetin, and FD & C Blue #2 aluminum lake. Sildenafil was shown to potentiate the hypotensive effects of acute and chronic nitrates, and its administration to patients who are concurrently using nitric oxide donors, organic nitrates or organic nitrites in any form either regularly or intermittently is therefore contraindicated (see Interactions). The co-administration of PDE5 inhibitors, including sildenafil, with guanylate cyclase stimulators, such as riociguat, is contraindicated as it may potentially lead to symptomatic hypotension.
A thorough medical history and physical examination should be undertaken to diagnose erectile dysfunction, determine potential underlying causes, and identify appropriate treatment. There is a degree of cardiac risk associated with sexual activity; therefore, physicians may wish to consider the cardiovascular status of their patients prior to initiating any treatment for erectile dysfunction. Agents for the treatment of erectile dysfunction should not be used in men for whom sexual activity is inadvisable.
The cost of erectile dysfunction (ED) medicines has been put under review by a new regulator.
The National Health Service said it considered the prescription drugs on the NHS, such as Viagra and Levitra, out of its review in June.
It was then told that there were "serious risks" in prescribing the drugs, including those for which patients could be prescribed them.
It was also told that those patients with chronic kidney disease and high blood pressure were at greater risk of serious side-effects, including heart attacks, strokes and the loss of vision in one of three conditions known as NAION, which are caused by a drop in blood pressure.
In June, the Medicines and Healthcare products Regulatory Agency (MHRA) decided that the drug sildenafil (Viagra), the branded version of the erectile dysfunction drug, should be reclassified as a generic drug under the Health Service Protection Authority (HDPA), the agency said.
In March, the MHRA had also raised its warning that it should not have recommended the drugs for the NHS to prescribe because they were known to be associated with cardiovascular risks.
But it was unclear whether the MHRA had also told its review-and-consultation team about the risks associated with those drugs.
The MHRA said it was reviewing the decision on the drugs, which include Viagra, Levitra and Cialis.
It was asked about the risk of people having a stroke, the deaths of their relatives and their children.
The regulator said there was no evidence that the drugs were linked to those risks.
But it added that those who were at increased risk of a heart attack or stroke were at greater risk.
The agency said there was also no evidence that the drugs were associated with those risks.
But it said that there was "no evidence" that these drugs were associated with the same risks.
The drug, which is marketed under the brand name Viagra, is used to treat erectile dysfunction and is the first medication to be approved for this condition. The drug was developed by Pfizer Inc.
Pfizer's patent on the drug expired in March, and the drug is now available only by prescription.
Pfizer has said that it is working with the MHRA to reclassify the drug, but has yet to make any public announcement on the decision.
The drug was first sold under the brand name Cialis in September 2018.
The MHRA has been asked to comment on the decision on the drugs.
The drug is not available under its brand.
READ MORE:The drugs are available only by prescription.
Dr Berkeley's chief executive Dr Berkeley Phillips said: "It is important that the public is aware of the serious risks associated with the drugs for which patients may be prescribed them."
The drug was first marketed as an erectile dysfunction treatment in 1998.
The MHRA said it was reviewing the decision on the drugs and making it up as part of the review process.
MHRA said it was reviewing the drug, but it was not making any public announcement about the decisionPfizer said the decision was not made public and there was no evidence of an increased risk of a heart attack, stroke or any other serious adverse effect.
The drug was available only by prescription. The MHRA was asked whether its review was required to assess the drug's potential risks.The agency said it was reviewing the decision and making recommendations for the future.The MHRA said: "The decision to reclassify the drug will be taken at a public meeting with the MHRA on 20 May 2023, following a review of the drug information and the risk factors for each of the drugs.
"The drug's benefit/risk balance will be assessed by the MHRA on 25 June 2023 and the decision will be taken by 24 May 2023.
"As the NHS continues to monitor the risk of serious adverse effects associated with the drugs, the decision to reclassify the drug will now be taken as an annual review and consideration by the MHRA, at a meeting with the National Health Service.
Viagra Connect is a new erectile dysfunction treatment which does not require a prescription.
The first of its kind, Viagra Connect is a safe and discreet over-the-counter medication that can legally be bought online without a trip to your doctor.
We need to ensure that this medicine is suitable for the person it is intended for. Therefore, it should only be purchased by the person taking it.
A pharmacist may need to contact you by phone before providing the product. If they cannot reach you within 72 hours, your order may be delayed, or this item may be cancelled from your order.
Please ensure your contact details are correct before ordering this medicine.Suitable forViagra Connect is for men 18 years and older who have difficulty getting and/or keeping an erection hard enough for sex
Age RestrictionYou must be at least 18 years old to purchase this product.
Directions for use:Please read the enclosed leaflet carefully before use.
• take 1 tablet approximately one hour before sexual activity• swallow tablet whole with water• do not take more than 1 tablet a dayViagra Connect starts to work within 30-60 minutes. You may take it up to 4 hours before sexual activity.
Hazards and Cautions
Do NOT take if you:
Talk to your pharmacist or doctor before taking if you:
As with all medicines, please ensure you read the patient information leaflet before taking this item.
CA:Medication supplied for diagnosis onlyis not intended for use by women.This is not approval and the Medicines are available over the counter without a prescription.
Step 4:untary consultation with a doctor or pharmacy:
Precautions:
Updated:08:25 BST, 10 November 2014
The US Food and Drug Administration has granted a green light to a UK online pharmacy from the UK based in the US.
It has been set up with a prescription of the drug Viagra and is being taken by men between the ages of 18 and 64 years old.
The drug was launched as a treatment for erectile dysfunction in the US in June 2015.
It was first introduced for the treatment of pulmonary arterial hypertension in 1998.
It is not covered by prescription and is not recommended for men aged 18 and over.
The pharmacy is open from 10am until 12pm and will be running a discreet and convenient online consultation with a UK doctor.
The drug is available at Lloyds Pharmacy and online through the website LloydsPharmacyWorld.co.uk, with a consultation and an online doctor visit available.
The online consultation allows the GP to check whether a man is eligible for the treatment and whether the drug is suitable.
It is available for men aged 18 and over with erectile dysfunction.
The online consultation is offered by Lloyds Pharmacy, a private online pharmacy.
The GP will have to provide an NHS prescription for the drug on the first try.
The pharmacy will have to supply a prescription of Viagra and the online doctor consultation and will also have an online pharmacy for the drugs, the company said.
However, the pharmacy will still be able to sell Viagra at a local chemist.
The website also offers a discount card for customers who pay a higher price on the drug.
It was also set up to provide online consultation with a UK doctor.
The pharmacy is not set up for personal use and is not licensed to operate in the UK.
The online consultation is a private service that will be available to customers in the US. It is set up to allow men to check for eligibility and discuss their situation with a GP.
The pharmacy is set up to be able to provide online consultation and to sell Viagra at a local chemist.
The pharmacy will have to supply a prescription of the drug on the first try.
It was set up to provide online consultation with a UK doctor.
The pharmacy has an online consultation with a GP.
It is set up to be able to sell Viagra at a local chemist.
It is not set up for personal use and is not licensed to operate in the UK.
It was set up to be able to sell Viagra at a local chemist.
The pharmacy is set up to be able to sell Viagra at a local chemist.