Erectile dysfunction
Erectile dysfunction is when men are unable to get or keep an erection suitable for sex. You can buy medication from Dr Fox Pharmacy by completing a short health assessment online.
Read medical information and answer medical questions to buy treatment online.
Erectile dysfunction medication
PricesAll medication supplied is UK licensed.
Prices
| Sildenafil trial pack | x2 | ||||
|---|---|---|---|---|---|
| Perrigo sildenafil 50mg (P) | £1.00 | ||||
| Tablet type & dosage | x4 | x8 | x16 | x32 | x64 |
| Sildenafil 25mg | £4.20 | £8.00 | £14.70 | £27.40 | £43.60 |
| Sildenafil 50mg | £5.95 | £11.20 | £19.90 | £39.80 | £47.50 |
| Sildenafil 100mg | £6.80 | £12.50 | £23.20 | £41.00 | £69.00 |
| Viagra 25mg | £24.20 | £44.30 | £82.00 | ||
| Viagra Connect 50mg | £16.00 | £32.00 | |||
| Viagra 50mg | £29.40 | £59.50 | £112.60 | ||
| Viagra 100mg | £33.80 | £64.45 | £124.40 | ||
| Tadalafil 10mg | £6.90 | £12.70 | £21.90 | £39.90 | |
| Tadalafil 20mg | £8.00 | £13.00 | £22.50 | £43.50 | |
| Cialis 10mg | £35.40 | £67.50 | £129.60 | ||
| Cialis 20mg | £36.20 | £68.80 | £133.20 | ||
| Cialis Together 10mg | £16.50 | £28.00 | |||
| Vardenafil 10mg | £11.80 | £21.75 | £39.90 | ||
| Vardenafil 20mg | £12.80 | £25.75 | £43.50 | ||
| Spedra 50mg | £16.50 | £28.00 | £49.50 | ||
| Spedra 100mg | £19.50 | £37.00 | £68.00 | ||
| Spedra 200mg | £29.50 | £54.50 | £98.00 | ||
| Tablet type & dosage | 28 tablets | 56 tablets | 84 tablets | 140 tablets | |
| Daily Tadalafil 2.5mg | £16.90 | £29.50 | £37.50 | £56.00 | |
| Daily Tadalafil 5mg | £17.90 | £32.00 | £46.00 | £75.00 | |
| Daily Cialis 2.5mg | £66.50 | £128.30 | |||
| Daily Cialis 5mg | £67.60 | £132.20 |
Prescription fees
Dr Fox supplies medicine on prescription and charges a small prescription fee based on the order value of each prescription.
Prescriptions are issued by our doctors online and sent electronically to our pharmacy.
| Order value | Prescription fee |
|---|---|
| up to £10 | £1.00 |
| up to £20 | £2.00 |
| up to £40 | £3.00 |
| over £40 | £4.00 |
If you have your own private or NHS paper prescription please post to our pharmacy (details).
Dr Fox prices are 25%–50% lower than other UK online clinics.
Delivery charges
UK delivery only: £2.90 per consultation via Royal Mail Tracked 24 Signed For (1-3 working days with tracking).
Parcel forwarding services are not permitted. Use only UK home or work delivery address.
Returns and refunds - unwanted items can be returned within 14 working days for a full refund.
Medical information
Written and reviewed by a team of doctors. Dr Fox is regulated by the CQC & GPhC.
About erectile dysfunction
Erectile dysfunction (ED) is common. It is not unusual for most men to have problems occasionally getting or maintaining an erection. This is usually caused by tiredness, stress, drinking too much alcohol, or anxiety. It is not usually caused by low hormone levels. Most men with erectile dysfunction are in reasonable health, although erectile dysfunction may be a symptom of poor circulation or early diabetes. Erectile dysfunction is more common in smokers and men who are overweight. Some medicines can contribute to ED as can many recreational and frequently abused drugs. Some men with ED have low testosterone levels. Cycling more than 3 hours a day can also lead to ED.
All men with persistent ED should tell their GPs about it.
ED treatments
Over the last few decades medications have revolutionised the treatment of erectile dysfunction. These medications work by enhancing the natural reaction to sexual stimulation, improving the blood flow needed for erections. Other treatments for ED include topical applications, injections into the penis, surgical devices, and counselling.
Types of medicine
Eight different erectile dysfunction tablets are available to buy online from Dr Fox pharmacy:
- Viagra (25mg, 50mg, 100mg)
- Viagra Connect (50mg only)
- Sildenafil (25mg, 50mg, 100mg)
- Cialis (2.5mg, 5mg, 10mg, 20mg)
- Cialis Together (10mg)
- Tadalafil (2.5mg, 5mg, 10mg, 20mg)
- Vardenafil (5mg, 10mg, 20mg)
- Spedra (50mg, 100mg, 200mg)
Each tablet has a different duration of action and side effects – see tablet differences below.
No combination of Viagra/sildenafil, Cialis/tadalafil, Levitra/vardenafil, Spedra/avanafil or other ED treatment should be used at the same time - a break of at least 24 hours should be left.
Cautions
- There is a very rare theoretical risk of abnormal heart rhythm (Prolonged QT interval) if Viagra (sildenafil) or Levitra (vardenafil) are taken at the same time as some other medications. If you are taking other medication please check this list. This risk is not applicable if taking Cialis (tadalafil) or Spedra (avanafil).
- Serious reaction possible if any ED medication is taken at the same time as Nitrates for angina or heart failure, including glyceryl trinitrate, isosorbide mononitrate, isosorbide dinitrate, GTN spray, tablet, patch or gel, nicorandil, sodium nitroprusside.
- Serious reaction possible if any ED medication is taken at the same time as recreational drugs, particularly amyl nitrate ('Poppers').
- Caution taking any ED medication if taking alpha-blockers (for high blood pressure or prostate enlargement) including alfuzosin, doxazosin, indoramin, prazosin, tamsulosin, terazosin.
- Do not take any ED medication if taking riociguat (for high blood pressure in the lungs).
Also see Tablet differences: Warnings and cautions in table below.
Investigating erectile dysfunction
You should always tell your regular doctor if you are having problems with erections.
Erectile dysfunction can be a symptom of conditions such as diabetes, high blood pressure, high cholesterol, or narrowing of the arteries. Some simple tests may be required. An assessment with a doctor is particularly important if symptoms develop over a period of weeks or months, or even suddenly, without an emotional event to set them off. Erectile dysfunction can be a complication of previous operations or a side effect of some prescribed medication.
Lifestyle and risk factors
Improving lifestyle factors such as diet, exercise, stopping smoking, reducing alcohol intake, and maintaining an active lifestyle has shown improvement in ED in men of all ages. Apart from the general benefits of a healthy lifestyle, studies show improvement in erectile dysfunction symptoms and a reduced need for tablets. ED also shares risk factors with a range of other medical conditions including diabetes, heart disease, and circulatory problems, all of which are also likely to benefit from lifestyle modification.
Starting treatment
It is best to start with a lower strength tablet and build up as needed (see how to start treatment). One type of tablet sometimes works better than another. You may like to try out different tablets to see which ones suit you best.
Sexual stimulation is required for tablets to work. Without it tablets will have no effect.
You can request more than one type of tablet at a time. It is advised to try the same treatment several times before deciding to change tablet type or dosage strength.
Counselling
Erectile dysfunction can be distressing and lead to relationship difficulties, anxiety, and depression. Your regular doctor may recommend counselling. This may help resolve the cause of erectile dysfunction. In some cases a problem of performance anxiety can be overcome by breaking the cycle of failure with tablet treatments.
Buy treatmentDr Fox pharmacy supplies erectile dysfunction medication on prescription – you are required to answer a short medical questionnaire before your order can be completed.
Product leaflets
Further information
Tablet differences
| Sildenafil | Tadalafil | Vardenafil | Avanafil | |
|---|---|---|---|---|
| Brand names | Viagra, Viagra Connect | Cialis, Cialis Together | Levitra | Spedra |
| Available generically | Yes | Yes | Yes | No |
| Starting dose | 50mg | 10mg | 10mg | 100mg |
| Time taken to start working | 30-60 minutes | 30-60 minutes (2.5mg and 5mg tablets can be taken daily) | 25-60 minutes - faster for orodispersible tablets | 15-30 mins on empty stomach, 1.5 hours on full stomach |
| How long effects last | 4 hours | 36 hours | 4-5 hours | 4 hours |
| Warnings and cautions | ||||
| Warning | Sildenafil | Tadalafil | Vardenafil | Avanafil |
| Do not take | Allergic to ingredients, low or high blood pressure, severe heart or liver problems, loss of vision due to NAION, recent stroke or heart attack | |||
| Rare inherited eye diseases | Kidney dialysis, rare inherited eye diseases | Liver or kidney problems, rare inherited eye diseases | ||
| Exclusions - talk to your doctor first | Sickle cell anaemia, multiple myeloma, leukaemia, deformity of the penis, problems with your heart, stomach ulcer or bleeding problems | |||
| Drug interactions | Any nitrate-based medication, usually to treat angina (important); 'poppers'; nitric oxide donors, medicines for HIV, AIDS, or fungal infections; riociguat; alpha-blockers; other ED medicines | |||
| Common side effects (% occurrence) | ||||
| Adverse event | Sildenafil | Tadalafil | Vardenafil | Avanafil |
| Headache | 12.8% | 14.5% | 16% | 10% |
| Flushing | 10.4% | 4.1% | 12% | 4% |
| Dyspepsia (indigestion) | 4.6% | 12.3% | 4% | <2% |
| Nasal congestion | 1.1% | 4.3% | 10% | 2% |
| Dizziness | 1.2% | 2.3% | 2% | 1.2% |
| Abnormal vision | 1.9% | <2% | <1% | |
| Back pain | 6.5% | 2% | ||
| Myalgia (muscle pains) | 5.7% | <1% | ||
| Medical emergencies (very rare) | ||||
| Urgent medical attention required | Sudden decrease or loss of vision, Priapism (painful erection lasting 2 hours or more), allergic reaction, chest pains, heart attack | |||
Notes: Sexual stimulation is required before erection will take place. See the manufacturer's patient information leaflet included in medicine packs for full details of cautions and interactions. If side effects are severe, stop the medication and see your doctor.
Authored 18 February 2010 by Dr
Tony Steele
MB ChB Sheffield University 1983. Former hospital doctor and GP. GMC no. 2825328
Reviewed by Dr C. Pugh, Dr B. Babor, Dr
A. Wood
Last reviewed 21 November 2022
Last updated 11 December 2024
Editorial policy
References
- NICE, 2023, Erectile dysfunction, accessed 14 September 2023
- British Society for Sexual Medicine, 2018, Guidelines on the Management of Erectile Dysfunction in Men, accessed 14 September 2023
- Ralph, McNicholas, 2000, BMJ: UK management guidelines for erectile dysfunction, accessed 14 September 2023
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