No, they are medically identical. They are equally effective and have the same side effects and other features. All three are from the same class of medicine PDE5 inhibitors and work in the same way.
They are all equally effective, but have different durations of action. Sildenafil stays active for about 4 hours, Levitra for hours and Cialis for 36 hours. Sildenafil is most suitable for men intending to be sexually active within a few hours of taking a tablet, after which time the effects will wear off. Sildenafil is relatively cheap to produce and is supplied by a number of competing drug companies. This lowers prices. Viagra, which is simply Pfizer's brand of sildenafil, is supplied by Pfizer alone.
Pfizer have chosen to keep the price of Viagra higher and can still find a market as some men are loyal to the Viagra brand. Sildenafil is a medicine for which the patent has expired. This means the pharmaceutical company which developed it, Pfizer, cannot prevent other companies producing it. There is a big demand, and about a dozen pharmaceutical companies produce and market their own sildenafil.
Only buy from registered pharmacies to guarantee tablets meet standards. If you obtain sildenafil from UK regulated websites and pharmacies there will be no difference. The active ingredient in one 25mg tablet of any brand of UK licensed sildenafil will be the same as any other. The appearance, shape, and colour may vary, but the active ingredient will be the same. Men often have a preference for one brand over another, but usually find that when their preferred brand is not available, they are just as happy with the alternative.
See brands of sildenafil page. The drug company Pfizer developed and patented sildenafil and marketed it under the name Viagra. Before the patent ran out only Pfizer was permitted to make sildenafil. When Pfizer's patent expired 21 June other drug companies started to make and market sildenafil tablets using the name 'sildenafil'.
Pharmacies buy medicines on the wholesale market, paying quite low amounts for sildenafil, which is made by various drug companies. Pharmacies then set their own mark-up when selling tablets on to patients. Dr Fox keeps its prices low and benefits from high levels of repeat ordering.
Other pharmacies take a different approach. It is worth shopping around. Since April pharmacies can supply Viagra Connect sildenafil 50mg without a prescription, although this is significantly more expensive. Viagra and generic sildenafil remain a prescription only medicine which can be dispensed legally only from registered pharmacies.
UK online pharmacies use electronic prescriptions issued by doctors or specialist pharmacists. When you order medicine from Dr Fox a prescription is issued electronically to our licensed pharmacy, so you do not need a paper prescription from your own doctor. Use only registered pharmacies, as unregulated suppliers are not subject to controls and will be selling fake medicine which may be ineffective and possibly dangerous.
Yes, GP s can prescribe sildenafil, but usually do so in only limited amounts in line with strict eligibility criteria. NHS prescription fees will apply. In some cases it will cost less to buy sildenafil online than obtaining it repeatedly through the NHS where the prescription fees may be higher.
See Sildenafil on the NHS page. Some brands of sildenafil tablets are scored to enable them to be cut in two. Torrent tablets usually supplied by Dr Fox are scored and can be split. Other brands are un-scored and can be difficult to split without shattering. It is best not to drink when taking sildenafil or to drink only a small amount one or two units. Alcohol is a depressant and tends to reduce erections and will reduce the effectiveness of treatment. Some side effects of sildenafil are likely to increase with alcohol, particularly low blood pressure.
Sildenafil is usually effective and usually remains effective at the same dose over many years. The body does not get used to sildenafil or become immune to its effects.
If there is a poor response from time to time, this is to be expected, as the circumstance around taking the tablets may not be right every time. If this happens, you should try again with the same strength tablets and can expect the same good responses as you had previously.
We have a problem! You need to enable cookies to use Lemonaid. Please change your browser settings. Sildenafil pills come in 4 different doses, but the only low cost option is the 20mg pill. Sildenafil is the chemical name for the active ingredient in viagra.
Sildenafil is in the group of medicines that doctors call PDE-5 inhibitors. At Lemonaid you can buy genuine sildenafil online by completing an online doctor visit to with a doctor licensed in your state. We can send that prescription to our partner mail order pharmacy who offer free delivery.
To get started you can use our erectile dysfunction service. Generic 20mg pills are the low cost option. If a Lemonaid doctor thinks it is appropriate to give you a prescription, they will recommend you take 1, 3 or 5 pills at a time, depending upon your personal situation.
These are the closest equivalent doses to the more expensive sildenafil 25mg, sildenafil 50mg and sildenafil mg. The typical starting dose for someone who has never taken these medicines before is 60mg, or 3 of the 20mg pills at a time. In discussion with your Lemonaid doctor, we can then adjust the Viagra strength if necessary based on your experience.
Like all medicines, Viagra comes with a risk of side effects. We provide a more detailed list of the side effects in our treatment plan. Headache, upset stomach, flushing, minor changes in vision, nasal congestion, back and muscle pain, nausea, mild dizziness, and rash are the common side effects. If you experience these Viagra side effects you should also let us know so that we can advise you accordingly.
Sign In. Viagra Viagra is the brand name for an ED medicine made by Pfizer. Get started.
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