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Buy Tadalafil Online: Generic Tadalafil Doses, Brands and Price
How to buy tadalafil online safely: licensed daily and as-needed doses, the 20 mg generic brands we stock, why 40 mg and 80 mg are not licensed, and what affects price.
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If you want to buy tadalafil online, the choice can look confusing at first: several brand names, strengths from 2.5 mg to 80 mg, and prices that vary a lot from one pack to the next. This guide explains what generic tadalafil is, which 20 mg brands we stock, which strengths are licensed doses and which are not, and what to check before you place an order.
Tadalafil is a prescription medicine for erectile dysfunction (ED) and, at a low daily dose, for the urinary symptoms of an enlarged prostate. A valid prescription is required for every order of a prescription medicine, and your doctor should decide which strength and dosing pattern suits you.
Key takeaways
- Generic tadalafil contains the same active ingredient as the branded original and works in the same way.
- Licensed doses are 10 mg or 20 mg taken as needed, or 2.5 mg or 5 mg taken once a day. Tadalafil should not be taken more than once in 24 hours.
- Tadacip 20, Ciasel 20 and Tadaboom are 20 mg tablets, the highest licensed as-needed dose.
- Vidalista 40 (40 mg) and Vidalista Black 80 (80 mg) are above the licensed dose. Only use what your prescriber sets.
- Never combine tadalafil with nitrates or riociguat, and tell your doctor about any blood pressure or prostate medicines.
- The tadalafil price per tablet mostly depends on pack size and strength.
What is generic tadalafil?
Tadalafil belongs to a group of medicines called PDE5 inhibitors. It relaxes the smooth muscle in the blood vessels of the penis, which lets more blood flow in when you are sexually aroused. It only works with sexual stimulation and does not increase sex drive.
Generic tadalafil is made once the original patent has expired. Each tablet contains the same active ingredient, tadalafil, at the stated strength. Inactive ingredients such as fillers, coatings and colours can differ, so the tablets may look different from the branded original. This is what you get when you order generic Cialis online. If you would like a deeper comparison of generic and branded versions, our guide to generic Cialis and how it compares with the brand covers that in detail, so we will not repeat it here.
The main thing that sets tadalafil apart from sildenafil is how long it lasts. Its effect can continue for up to around 36 hours after a dose, which is why some people prefer it to shorter-acting options.
Before you buy tadalafil online: daily vs as-needed doses
There are two ways tadalafil is prescribed for ED. Your doctor will choose one based on how often you expect to be sexually active, your other health conditions and the medicines you already take.
As-needed dosing (10 mg or 20 mg)
The usual starting dose is 10 mg, taken at least 30 minutes before sexual activity. Depending on how well it works and how well it is tolerated, a prescriber may raise it to 20 mg, which is the highest licensed as-needed dose. It should not be taken more than once a day. Some people, for example those with kidney or liver problems or those taking certain other medicines, may be kept on a lower dose.
Once-daily dosing (2.5 mg or 5 mg)
Low-dose tadalafil is taken at roughly the same time every day, regardless of when you plan to have sex. This keeps a steady level of the medicine in your body, so there is no need to time a dose. The usual daily dose is 5 mg, and some people are prescribed 2.5 mg. A 5 mg daily dose is also used for the urinary symptoms of an enlarged prostate.
| Dosing pattern | Licensed strength | How it is taken | Often suits |
|---|---|---|---|
| As needed | 10 mg (start), up to 20 mg | At least 30 minutes before sex, no more than once a day | Occasional sexual activity |
| Once daily | 2.5 mg or 5 mg | Same time every day | Frequent activity, or not wanting to plan ahead |
| Not licensed | 40 mg, 80 mg | Only if a prescriber specifically sets it | Not a standard dose |
Generic tadalafil 20 mg brands we stock
Our 20 mg range covers three well-known generic brands. All contain 20 mg of tadalafil per tablet. The differences are mainly in the manufacturer, tablet appearance and pack size, which in turn affect the tadalafil 20mg price per tablet.
| Product | Active ingredient | Strength | Licensed dose? |
|---|---|---|---|
| Tadacip 20 tadalafil tablets | Tadalafil | 20 mg | Yes (as-needed maximum) |
| Ciasel 20 tadalafil tablets | Tadalafil | 20 mg | Yes (as-needed maximum) |
| Tadaboom tadalafil 20 mg | Tadalafil | 20 mg | Yes (as-needed maximum) |
| Vidalista 40 | Tadalafil | 40 mg | No, above the licensed dose |
| Vidalista Black 80 | Tadalafil | 80 mg | No, above the licensed dose |
Because 20 mg is the top of the licensed as-needed range, it is not usually the dose people start on. If your prescription is for 10 mg, ask your doctor or pharmacist whether a 20 mg tablet can be split, and only do so if your tablets are scored and you have been told it is suitable.
What are Vidalista 40 and Vidalista Black 80?
Vidalista 40 contains 40 mg of tadalafil and Vidalista Black 80 contains 80 mg. Both are above the licensed dose. The highest licensed as-needed dose of tadalafil is 20 mg, taken no more than once a day. Taking more does not reliably make the medicine work better, but it does raise the chance of side effects such as headache, flushing, back pain, dizziness and a drop in blood pressure.
We list these strengths because some prescribers set them for specific patients. Do not take a 40 mg or 80 mg tablet, or several lower-strength tablets at once, unless your prescriber has set that dose for you. If a 20 mg dose is not working well enough, speak to your doctor rather than increasing the amount yourself. There may be another cause to look at, or a different treatment may suit you better.
Why is the generic tadalafil price lower?
Branded medicines carry the cost of years of research, clinical trials and marketing. Once the patent ends, other manufacturers can produce the same active ingredient without repeating that original research, which allows a much lower price. Competition between several generic makers pushes prices down further.
A lower price does not mean a weaker medicine. A genuine generic contains the stated amount of tadalafil. What matters is buying from a store that supplies genuine, sealed packs and asks for a valid prescription. At RxPillTab, every tadalafil order is checked against a prescription before it is dispatched.
What affects the tadalafil price you pay?
When you compare a tadalafil price across products or stores, look at the cost per tablet rather than the headline pack price. The main factors are:
- Pack size: larger packs usually work out cheaper per tablet. This matters most for daily dosing, where you use a tablet every day.
- Strength: a 20 mg tablet often costs more than a lower strength, but not always in proportion. Your prescribed strength should always decide which you buy, not the price.
- Brand: different generic brands are priced differently even at the same strength.
Current prices and pack options are shown on each product page in our men’s health range.
What to check on the pack when you buy tadalafil online
When your order arrives, take a minute to check it before you take any tablets:
- The active ingredient reads “tadalafil” and the strength matches your prescription.
- The blister strips are sealed and undamaged.
- There is a batch number and an expiry date, and the expiry date has not passed.
- The manufacturer’s name is printed on the pack.
- A patient leaflet is included, or you know where to find the information for your medicine.
Read the patient leaflet that comes with your medicine. If anything looks wrong, do not take the tablets and contact our support team.
Tadalafil safety: interactions and side effects
Medicines you must not combine with tadalafil
- Nitrates, such as glyceryl trinitrate (GTN) sprays or tablets, isosorbide mononitrate and recreational “poppers”. The combination can cause a dangerous fall in blood pressure. This applies for at least 48 hours after a tadalafil dose.
- Riociguat, a medicine for some types of pulmonary hypertension. It must not be taken with tadalafil.
Medicines that need care
- Alpha-blockers, such as doxazosin or tamsulosin, used for blood pressure or prostate symptoms. Together with tadalafil they can lower blood pressure and cause dizziness. Your doctor may adjust the timing or dose.
- Some antifungal, antibiotic and HIV medicines (for example ketoconazole, itraconazole, clarithromycin or ritonavir) can raise tadalafil levels, so a lower dose may be needed.
- Other ED medicines should not be taken at the same time.
Alcohol
Drinking a lot of alcohol with tadalafil can lower blood pressure and make dizziness, a fast heartbeat or headache more likely. Keep alcohol moderate.
Common side effects and warning signs
Common side effects include headache, flushing, indigestion, a blocked nose, and back or muscle pain, which usually ease within a day or two. Get urgent medical help for chest pain, an erection lasting more than four hours, sudden loss of vision, or sudden hearing loss.
Tadalafil may not be suitable if you have serious heart disease, have had a recent heart attack or stroke, have very low blood pressure, or have severe liver or kidney problems. Your prescriber needs to know your full medical history.
How to buy generic tadalafil online safely
If you buy medicine online, the same basic steps apply whichever product you choose:
- Get a valid prescription. See your doctor, discuss your symptoms and other medicines, and agree on a dose and dosing pattern.
- Check the strength. Choose the tablet that matches your prescription, whether that is a daily low dose or a 10 mg or 20 mg as-needed dose.
- Compare pack sizes. Work out the cost per tablet and how long the pack will last at your prescribed dose.
- Place your order and upload your prescription. Our how to order page explains the steps.
- Allow time for delivery. Orders are shipped worldwide by EMS or registered mail in discreet packaging, delivered to the US, UK, Europe and Canada.
- Tell your doctor. Let your doctor know which generic brand you are using, and report any side effects.
Frequently asked questions
Do I need a prescription to buy tadalafil online?
Yes. Tadalafil is a prescription medicine. A valid prescription is required for every order of a prescription medicine, so you will need to see a doctor first and agree on the right dose.
Is generic tadalafil as effective as the brand?
Genuine generic tadalafil contains the same active ingredient at the same strength as the branded original and works in the same way. Tablet colour, shape and inactive ingredients may differ.
What is the difference between tadalafil 5 mg daily and 20 mg?
A 5 mg tablet is taken every day to keep a steady level of the medicine in your body. A 20 mg tablet is taken as needed, at least 30 minutes before sex, no more than once a day. Your doctor will decide which suits you.
Are Vidalista 40 and Vidalista Black 80 safe to take?
Both are above the licensed dose of tadalafil. Higher doses increase the risk of side effects without reliably improving results. Only take them if your prescriber has specifically set that dose for you.
What affects the tadalafil 20mg price?
Mainly the brand and the pack size. Larger packs usually cost less per tablet. Check each product page for current prices and pack options.
Can I drink alcohol with tadalafil?
A small amount is unlikely to cause problems for most people, but heavy drinking with tadalafil can lower blood pressure and cause dizziness or headache. Keep alcohol moderate and follow your doctor’s advice.
The information on this page is for general guidance only and does not replace professional advice. Always consult your doctor or pharmacist before starting any medicine. Read our full medical disclaimer.
Medicines mentioned in this guide
All medicines are supplied only against a valid prescription. Prices shown are for the smallest pack.
About this guide
Written by the rxptteam8. We base our guides on official sources such as the NHS, the US FDA, the EMA and MedlinePlus, and we update them when guidance changes. Last updated .