A happy couple — ED is common and very treatable

Prescription-only · Pharmacist-reviewed · No video call

Tadalafil (generic Cialis)

The long-window option — an effect window of up to 36 hours for more spontaneity, with the same active ingredient as Cialis. Supplied only after our prescribing pharmacist reviews your confidential online consultation.

Start your free consultation →

Free consultation · pay only if approved · plain, unmarked packaging

GPhC-registered pharmacy Reviewed within 1 working day

Strengths & prices

Choose your strength — the pharmacist confirms it

Tap a strength to see the pack. Everyone new to tadalafil normally starts at 10 mg; if 10 mg isn’t effective enough, the pharmacist can move you to 20 mg. Your pharmacist confirms the right strength at review — nothing is dispensed automatically.

Generic tadalafil 10 mg film-coated tablets pack

Generic tadalafil 20 mg film-coated tablets pack

Tadalafil tablets

Generic tadalafil · film-coated tablets · taken as needed, max one dose in 24 hours

StrengthQuantityPrice

10 mg4 tablets£8.95

20 mg4 tablets£9.75

Standard starting dose: 10 mg. If 10 mg isn’t effective enough, the pharmacist can move you to 20 mg — that’s normal practice.

Start consultation — 10 mg →

Free · about 5 minutes · no video call · pay only if approved

Never take tadalafil with nitrates (e.g. GTN spray, isosorbide), nicorandil or ‘poppers’. The combination can cause a life-threatening drop in blood pressure. Our consultation screens for this — and if it applies to you, your GP or cardiologist is the right route for ED treatment. Because tadalafil stays in the body longer, at least 48 hours must pass after a dose before nitrates can be given safely in an emergency — always tell any treating clinician when you last took it.

What it is

How tadalafil works — and how to take it

How it works

Tadalafil is a PDE5 inhibitor — it increases blood flow to the penis when you’re sexually stimulated. It doesn’t cause an erection on its own, and it doesn’t affect desire. It’s the same active ingredient as branded Cialis, and therapeutically equivalent.

When to take it

Take one tablet at least 30 minutes before sex — and it can remain effective for up to 36 hours after dosing. That’s a window of opportunity, not a 36-hour erection. Take it with or without food — unlike shorter-acting ED tablets, a heavy meal does not delay it. Maximum one dose in any 24 hours, and avoid grapefruit juice.

Getting the dose right

Most men start at 10 mg. If 10 mg isn’t effective enough, the pharmacist can move you to 20 mg. Liver problems or severe kidney problems mean a maximum of 10 mg — the consultation checks for these, and the pharmacist confirms the right dose.

What to expect

It can take a few tries to work its best — don’t judge it on one attempt. The long window suits weekends and spontaneity — no need to plan around a narrow slot. If it’s still not working at the right dose, the pharmacist will review — switching tablet or checking for underlying causes with your GP.

Safety

Side effects and who should avoid it

Factual safety information from the licensed product information — the consultation checks every exclusion, and the pharmacist explains anything that applies to you.

Common, usually mild

Headache and indigestion (the most common)
Back pain and muscle aches — characteristic of tadalafil, typically appearing 12–24 hours after a dose and settling within 48 hours
Blocked nose, facial flushing, feeling dizzy

These are dose-related and usually settle on their own.

Stop and seek urgent help if

Chest pain during or after sex
An erection lasting more than 4 hours (priapism)
Sudden loss or reduction of vision or hearing
Signs of a serious allergic reaction

Rare — but they need immediate medical attention.

Not suitable with: nitrates/nicorandil/poppers (never), riociguat, HIV protease inhibitors, doxazosin (an alpha-blocker — not recommended with tadalafil), severe liver disease, very low or uncontrolled high blood pressure, a heart attack or stroke in the last 6 months, unstable angina, severe heart failure, certain eye conditions (NAION, retinitis pigmentosa), or conditions predisposing to priapism. Caution and lower doses with other alpha-blockers, some antifungals and antibiotics, grapefruit juice, and liver or kidney problems — the consultation covers each of these, and the pharmacist makes the decision. Report side effects via the MHRA Yellow Card scheme (yellowcard.mhra.gov.uk).

How it works

From question to discreet delivery

Answer online

A confidential 5-minute questionnaire built on the official clinical criteria — no video call needed.

Pharmacist reviews

Our prescribing pharmacists personally review your answers, usually within one working day, and confirm the right strength.

Discreet supply

Collect in store, or plain unmarked tracked delivery. Payment only once the pharmacist has approved.

Ongoing support

Dose review if it’s not working well, side-effect advice, and a GP referral whenever that’s the safer route.

Common questions

Tadalafil, answered plainly

Is generic tadalafil as good as Cialis?

Yes — it contains the same active ingredient at the same strengths, made to the same MHRA standards, and is therapeutically equivalent. The difference is price.

What does ‘up to 36 hours’ mean?

It’s the window during which the tablet can work — with sexual stimulation — not a continuous erection. It doesn’t cause an erection on its own, and an erection lasting more than 4 hours is a medical emergency that needs urgent help.

Do you do daily tadalafil?

No — this service supplies as-needed tadalafil 10 mg and 20 mg only. If you’re interested in daily dosing, speak to our pharmacist or your GP.

Do I need a video call?

No — you complete the confidential questionnaire and our prescribing pharmacist reviews it personally, usually within one working day, and phones only if something needs clarifying.

Tadalafil or sildenafil?

Both work the same way — PDE5 inhibitors that increase blood flow with sexual stimulation. Tadalafil gives a longer effect window (up to 36 hours) and isn’t delayed by food; sildenafil is the most established option and the lowest cost. The pharmacist can help you choose in the consultation.

Ready to start?

Free consultation · No video call · A personal decision from our pharmacists

Start your free consultation →

Important. Tadalafil is a prescription-only medicine supplied under a Patient Group Direction after a structured clinical check. Our prescribing pharmacists personally review every consultation and make the final decision — nothing is approved automatically, and where your GP is more appropriate we will say so. This page is factual service information, not a recommendation to use any medicine. Never combine tadalafil with nitrates, nicorandil or ‘poppers’; avoid grapefruit juice; it gives no protection against sexually transmitted infections.