Description
Why choose Cialis 20mg? Long-lasting window (up to 36 hours), flexible timing, and discreet next-day delivery after a quick online consultation.
What is Cialis 20mg (Tadalafil)?
Cialis 20mg contains tadalafil, a PDE5 inhibitor used for erectile dysfunction (ED). It increases blood flow to help achieve and maintain an erection when sexually stimulated. This on-demand strength is intended before anticipated sexual activity.
How Cialis works (PDE5 inhibition)
Tadalafil blocks phosphodiesterase type‑5 (PDE5), helping maintain cyclic GMP in penile tissue. With sexual stimulation, this supports smooth muscle relaxation and improved blood flow.
Who is Cialis 20mg suitable for?
Adults 18+ with ED who are assessed as suitable during the online consultation. Your prescriber will review your history, medicines, and risk factors before issuing a prescription.
Who should not take it
Do not use Cialis 20mg if you take any nitrates or riociguat, or if you’ve been advised to avoid sexual activity due to heart problems. Seek medical advice if you had a recent heart attack or stroke, have severe liver disease, very low or uncontrolled high blood pressure, hereditary eye disorders such as NAION, or a known allergy to tadalafil.
Dosage & directions
On-demand dose
Take one tablet about 30–60 minutes before sexual activity. Do not take more than one dose in 24 hours. 20mg is for on-demand use; a 5mg daily option exists but isn’t covered on this page.
Onset & duration
Cialis typically starts working in 30–60 minutes and may remain effective for up to 36 hours. Sexual stimulation is required for Cialis to work.
Food & alcohol advice
You can take Cialis with or without food, but a heavy meal may delay onset. Limit alcohol to reduce dizziness or low blood pressure risk.
Warnings & interactions
Nitrates & poppers (contraindicated)
Never use Cialis with nitrates (e.g., glyceryl trinitrate, isosorbide mononitrate/dinitrate) or recreational ‘poppers’. Combining them can cause a dangerous drop in blood pressure.
Alpha‑blockers and blood pressure medicines
If you take alpha‑blockers (e.g., doxazosin, tamsulosin) or other BP medicines, your prescriber may advise specific timing or monitoring. Always follow medical guidance.
Possible side effects
Common
Headache, flushing, indigestion, back pain, muscle aches, and nasal congestion. These are usually mild and short‑lived.
Serious—seek urgent help
Stop use and seek urgent medical help for chest pain, sudden vision or hearing loss, severe allergic reaction, or an erection lasting more than 4 hours (priapism).
How to order online
Step 1 — Free online consultation
Answer a short medical questionnaire reviewed by a UK prescriber.
Step 2 — e‑Prescription & payment
If suitable, your prescription is issued and you complete your order securely.
Step 3 — Discreet next‑day delivery
Your order is dispensed by a UK pharmacy and delivered in plain, trackable packaging.
FAQs
Q: How long does Cialis 20mg last?
A: Effects can last for up to 36 hours, though this varies by individual and dose timing.
Q: How quickly does Cialis 20mg start working?
A: It generally starts within about 30–60 minutes when taken as directed.
Q: Can I take Cialis 20mg with alcohol?
A: Avoid excessive alcohol. It can reduce effectiveness and increase side‑effect risk.
Q: Who shouldn’t take Cialis 20mg?
A: People using nitrates or riociguat, or with certain heart/eye conditions, should not take it.
Q: Can I take Cialis 20mg daily?
A: 20mg is for on‑demand use only. A 5mg daily option exists—ask your prescriber.
Q: Is generic tadalafil the same as Cialis?
A: They contain the same active ingredient. Differences are non‑clinical (brand vs generic).
Q: Can I combine Cialis with alpha‑blockers?
A: You may need dose timing and medical advice. Follow your prescriber’s instructions.
Q: What if I get an erection lasting more than 4 hours?
A: Seek urgent medical help immediately (priapism risk).

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