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Sildenafil Dr Reddys: Price, Strengths and How to Order Safely in the UK
Published: 7 November 2026
Sildenafil Dr Reddys is a generic version of Viagra manufactured by Dr Reddy's Laboratories, available in the UK for the treatment of erectile dysfunction. Like all prescription sildenafil products, it contains the same active ingredient as branded Viagra and works in the same way, but is typically more affordable. At Cured Pharmacy, sildenafil (generic Viagra) starts from £0.45 per tablet, or £0.36 with your first order using code Ednew, following a quick online consultation reviewed by a UK prescriber.
At a glance
What is sildenafil Dr Reddys and how does it work?
Sildenafil Dr Reddys is a generic erectile dysfunction medicine made by Dr Reddy's Laboratories, a global pharmaceutical company. It contains the active ingredient sildenafil citrate, the same medicine found in branded Viagra [3]. Sildenafil belongs to a group of medicines called PDE5 inhibitors, which work by relaxing blood vessels in the penis, allowing increased blood flow when you are sexually aroused [1].
The medicine does not cause an erection on its own—sexual stimulation is still needed [3]. Sildenafil Dr Reddys is bioequivalent to branded Viagra, meaning it delivers the same amount of active ingredient into your bloodstream at the same rate, so you can expect the same effectiveness and safety profile. Generic versions like Dr Reddy's are licensed by the Medicines and Healthcare products Regulatory Agency (MHRA) and must meet the same strict quality standards as the original branded product [12].
In the UK, sildenafil is available in three strengths: 25 mg, 50 mg, and 100 mg tablets [3]. Your prescriber will recommend the most suitable dose based on your health, other medicines you take, and how well the treatment works for you. Most men start on 50 mg, taken about one hour before sexual activity, with a maximum of one dose in 24 hours [3].
Sildenafil Dr Reddys price: what affects the cost?
The price of sildenafil Dr Reddys and other generic sildenafil products in the UK can vary depending on several factors. The manufacturer is one consideration—different pharmaceutical companies produce generic sildenafil, including Dr Reddy's, Teva, Accord, and others. While all contain the same active ingredient and meet the same regulatory standards, pricing can differ between brands due to manufacturing costs, supply agreements, and market competition.
The strength and quantity you order also affect the total cost. Higher-strength tablets (100 mg) are often more expensive per tablet than lower strengths (25 mg or 50 mg), though some pharmacies offer better value on larger pack sizes. At Cured Pharmacy, sildenafil (generic Viagra) is priced at £0.45 per tablet, or £0.36 with code Ednew on your first order. This is significantly more affordable than branded Viagra, which costs £37.95 (£30.36 with code Ednew) for the same active ingredient [3].
Whether you choose an online pharmacy or a high-street chemist can also influence price. Online services like Cured Pharmacy often have lower overheads and can pass those savings on to patients. However, it is essential to use only GPhC-registered pharmacies (like Cured Pharmacy, GPhC 9012511) to ensure you receive genuine, safe medicines. All sildenafil products are prescription-only in the UK, so a consultation with a qualified prescriber is always required before your first supply [2].
How is sildenafil Dr Reddys supplied and what strengths are available?
Sildenafil Dr Reddys is supplied as film-coated tablets in blister packs, typically in quantities of 4, 8, or 12 tablets, though pack sizes can vary by supplier. Each tablet is marked with the strength (25 mg, 50 mg, or 100 mg) and should be swallowed whole with water, about one hour before you plan to have sex [3]. The tablets are small, easy to take, and can be taken with or without food, although a heavy, high-fat meal may delay how quickly the medicine starts to work.
The 50 mg strength is the most commonly prescribed starting dose for most men [3]. If this works well but you experience side effects, your prescriber may suggest reducing to 25 mg. If 50 mg is not effective enough, the dose can be increased to 100 mg, which is the maximum recommended dose in 24 hours [3]. Your prescriber will tailor the dose to your individual needs, taking into account your age, other health conditions, and any other medicines you are taking.
At Cured Pharmacy, we stock a range of sildenafil products from different manufacturers, all of which are clinically equivalent. Whether you receive sildenafil Dr Reddys or another generic brand may depend on current stock availability, but you can be confident that every product we supply is MHRA-licensed, safe, and effective. If you have a preference for a specific manufacturer, you can mention this during your online consultation, and our pharmacy team will do their best to accommodate your request where possible.
Can I split sildenafil tablets to adjust the dose?
Some sildenafil tablets have a score line and can be split if your prescriber advises it, but you should never adjust your dose without checking first. Splitting tablets is not always accurate and may affect how the medicine works. If you need a lower dose, it is safer to ask your prescriber to prescribe the correct strength. Always follow the dosing instructions provided by your prescriber and pharmacist [3].
What you need to know
- Sildenafil Dr Reddys is a generic Viagra containing the same active ingredient at a lower cost.
- At Cured Pharmacy, sildenafil starts from £0.45 per tablet, or £0.36 with code Ednew.
- All sildenafil products require a prescription after an online consultation with a UK prescriber.
- Generic sildenafil is bioequivalent to branded Viagra and equally effective and safe.
- Never buy ED medicines from unregistered websites; always use a GPhC-registered pharmacy.
Comparing sildenafil Dr Reddys with other ED treatments
Sildenafil Dr Reddys is just one of several effective treatments for erectile dysfunction available in the UK. All licensed oral ED medicines are PDE5 inhibitors, which work in a similar way but differ in how quickly they start to work and how long their effects last [1][2]. Sildenafil (including Dr Reddy's and other generics) typically starts to work within 30 to 60 minutes and lasts for about four to six hours [3].
Tadalafil (generic Cialis) is another popular option. It can be taken on-demand (10 mg or 20 mg at least 30 minutes before sex) or as a lower daily dose (2.5 mg or 5 mg). The on-demand dose can last up to 36 hours, giving more spontaneity [4]. Vardenafil (generic Levitra) works similarly to sildenafil, taking about 25 to 60 minutes to start, while avanafil (Spedra) is the fastest-acting, often working in 15 to 30 minutes [6][11].
Cost is an important factor for many men. Generic sildenafil is one of the most affordable ED treatments in the UK. At Cured Pharmacy, sildenafil starts from £0.45 per tablet (£0.36 with code Ednew), compared to branded Viagra at £37.95 (£30.36 with code Ednew). Tadalafil is priced at £7.95 (£6.36 with code Ednew), and Spedra at £20.95 (£16.76 with code Ednew). Your choice will depend on your lifestyle, how often you have sex, and which medicine works best for you. A prescriber can help you decide during your consultation [2].
Is sildenafil Dr Reddys as effective as branded Viagra?
Yes. Sildenafil Dr Reddys contains exactly the same active ingredient as branded Viagra and is bioequivalent, meaning it works in the same way and produces the same results [3][12]. Generic medicines must meet strict regulatory standards to prove they deliver the same therapeutic effect as the original branded product. Many men choose generics because they offer the same clinical benefits at a much lower price.
How to order sildenafil Dr Reddys safely online
Ordering sildenafil Dr Reddys or any other ED treatment online in the UK is safe and convenient, provided you use a registered pharmacy. Cured Pharmacy is registered with the General Pharmaceutical Council (GPhC 9012511), which means we meet all legal and professional standards for online prescribing and dispensing. Every order begins with a short online consultation, which asks about your health, current medicines, and any conditions that might make sildenafil unsuitable for you [2].
A UK-registered prescriber (a doctor or an independent prescribing pharmacist) will review your answers. If sildenafil is safe and appropriate for you, they will approve a prescription, and your medicine will be dispensed by our pharmacy team and posted to you in discreet, plain packaging. If sildenafil is not suitable, the prescriber will explain why and may suggest an alternative treatment or recommend that you see your GP for further assessment [1][2].
It is important never to buy sildenafil from unregistered websites or suppliers that do not require a consultation. Counterfeit or unlicensed ED medicines are common online and may contain the wrong dose, harmful ingredients, or no active ingredient at all. Always check that the pharmacy is GPhC-registered (you can verify this on the GPhC website) and that a qualified prescriber reviews your order. At Cured Pharmacy, patient safety is our priority, and we only supply genuine, MHRA-licensed medicines.
When to get urgent help
- Erection lasting more than 4 hours (priapism) – go to A&E immediately
- Sudden loss of vision or hearing – stop taking sildenafil and seek urgent medical help
- Chest pain during or after sex – stop activity, call 999 if pain does not go away
- Severe allergic reaction (swelling of face, lips, tongue, difficulty breathing) – call 999
- Severe dizziness or fainting – sit or lie down and seek medical advice promptly
Call 999 or go to A&E in an emergency, or contact NHS 111 for urgent advice.
Important safety information about sildenafil Dr Reddys
Sildenafil Dr Reddys is a safe and well-tolerated medicine for most men, but it is not suitable for everyone. You must never take sildenafil if you are using nitrate medicines for chest pain (such as GTN spray, isosorbide mononitrate, or isosorbide dinitrate), nicorandil, riociguat, or recreational drugs called 'poppers' (amyl or alkyl nitrites). Combining sildenafil with any of these can cause a dangerous drop in blood pressure [3].
If you take alpha-blockers for an enlarged prostate or high blood pressure (such as doxazosin, tamsulosin, or alfuzosin), you may be at higher risk of dizziness or low blood pressure when starting sildenafil. Your prescriber will usually recommend starting on the lowest dose and ensuring you are stable on your alpha-blocker first [3]. Some medicines that affect liver enzymes—such as ritonavir, ketoconazole, itraconazole, or clarithromycin—can increase sildenafil levels in your blood, so your prescriber may need to adjust your dose [3][12].
Sildenafil is not suitable if you have recently had a heart attack or stroke, have unstable angina, severe heart failure, very low blood pressure, or a history of sudden vision loss (non-arteritic anterior ischaemic optic neuropathy, or NAION). If you experience an erection lasting more than four hours, sudden loss of vision or hearing, or chest pain during sex, stop taking sildenafil and seek urgent medical help [3]. Common side effects include headache, flushing, indigestion, and nasal congestion; these are usually mild and temporary. Always read the patient information leaflet and discuss any concerns with your prescriber or pharmacist [12].
Can I take sildenafil Dr Reddys with other medicines?
Sildenafil can interact with several medicines, so it is essential to tell your prescriber about everything you take, including over-the-counter products and herbal remedies. During your online consultation at Cured Pharmacy, you will be asked to list all your current medicines. The prescriber will check for interactions and ensure sildenafil is safe for you. Never stop or change a prescribed medicine without advice from your doctor or pharmacist [3][12].
Always declare all your medicines
During your online consultation, list every medicine you take, including over-the-counter products and herbal remedies. This helps the prescriber check for interactions and ensure sildenafil is safe for you.
Scientific References
- NHS. (n.d.). Erectile dysfunction (impotence). NHS website. https://www.nhs.uk/conditions/erection-problems-erectile-dysfunction/ [accessed 7 November 2026]
- National Institute for Health and Care Excellence. (n.d.). Erectile dysfunction. Clinical Knowledge Summaries. https://cks.nice.org.uk/topics/erectile-dysfunction/ [accessed 7 November 2026]
- Joint Formulary Committee. (n.d.). Sildenafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/sildenafil/ [accessed 7 November 2026]
- Joint Formulary Committee. (n.d.). Tadalafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/tadalafil/ [accessed 7 November 2026]
- Joint Formulary Committee. (n.d.). Avanafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/avanafil/ [accessed 7 November 2026]
- National Institute for Health and Care Excellence. (2014). Erectile dysfunction: avanafil (ESNM45). https://www.nice.org.uk/advice/esnm45 [accessed 7 November 2026]
- Electronic Medicines Compendium. (n.d.). Summaries of Product Characteristics and Patient Information Leaflets. https://www.medicines.org.uk/emc/ [accessed 7 November 2026]
Information on this page is for educational purposes only and is not medical advice. Prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting or changing any medication.
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Your Questions Answered
Is sildenafil Dr Reddys available on the NHS?
Sildenafil is available on NHS prescription for some men, depending on local guidelines and eligibility criteria. Many men choose to buy it privately because NHS availability can be limited and private prescriptions offer more choice and convenience.
How long does sildenafil Dr Reddys last?
Sildenafil Dr Reddys typically works for about four to six hours, though this varies between individuals. You should take it about one hour before sexual activity, and you must not take more than one dose in 24 hours.
Can I drink alcohol with sildenafil Dr Reddys?
Small amounts of alcohol are unlikely to cause problems, but drinking heavily can make it harder to get an erection and may increase the risk of side effects such as dizziness or low blood pressure.
What is the difference between sildenafil Dr Reddys and sildenafil Teva?
Both are generic versions of Viagra and contain the same active ingredient, sildenafil citrate. The main difference is the manufacturer—Dr Reddy's Laboratories and Teva are both reputable pharmaceutical companies, and both products are equally effective and safe.
Do I need a prescription for sildenafil Dr Reddys?
Yes. All strengths of sildenafil (25 mg, 50 mg, and 100 mg) are prescription-only medicines in the UK. You will need a consultation with a qualified prescriber, either face-to-face or online, before your first supply.
Can I take sildenafil Dr Reddys every day?
Sildenafil is usually taken on-demand, up to once a day, rather than daily. If you want a daily treatment, tadalafil 2.5 mg or 5 mg may be more suitable—discuss this with your prescriber during your consultation.
What should I do if sildenafil Dr Reddys does not work?
If sildenafil does not work after several attempts, speak to your prescriber. They may suggest increasing the dose, trying a different PDE5 inhibitor, or investigating underlying causes of ED with your GP.
Is sildenafil Dr Reddys safe for older men?
Sildenafil can be used safely by older men, but your prescriber will take into account your overall health, other medicines, and any heart or blood pressure conditions. A lower starting dose may be recommended.
Medically reviewed by
Tarun Kumar, Superintendent Pharmacist (GPhC 2233073)