Tadalafil Pill Identifier: How to Identify Your Tablets
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Tadalafil Pill Identifier: Identify Your Tablets Safely

Learn how to identify tadalafil by appearance, markings and strength, with guidance from UK pharmacists.

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Tadalafil Pill Identifier: How to Identify Your Tablets Safely

Published: 15 October 2026

A tadalafil pill identifier helps you confirm the appearance, markings and dosage of your tablets, ensuring you have received the correct medicine. Tadalafil tablets vary in colour, shape and imprint depending on the manufacturer, strength and whether they are branded (Cialis) or generic versions. This guide explains how to identify tadalafil tablets safely and what to check when you receive your prescription.

Key takeaways

  • Tadalafil tablets vary in colour, shape and markings depending on the manufacturer and strength.
  • Always check the dispensing label and patient leaflet to confirm your tablets match the description.
  • Branded Cialis is yellow and almond-shaped with 'C' and dose number embossed; generics vary widely.
  • Only buy tadalafil from GPhC-registered pharmacies to avoid counterfeit or unsafe medicines.
  • Contact your pharmacy immediately if your tablets look wrong or you suspect a dispensing error.
PART 01

What Does Tadalafil Look Like? Common Tablet Appearances

Tadalafil tablets come in different appearances depending on the manufacturer and strength. Branded Cialis tablets are typically yellow, almond-shaped, and film-coated, with distinctive markings such as 'C 5', 'C 10' or 'C 20' embossed on one side to indicate the dose in milligrams [4]. Generic tadalafil tablets vary more widely: they may be round, oval or almond-shaped, and colours range from white, yellow, orange to light brown.

The 2.5 mg and 5 mg strengths (used for daily dosing) are usually smaller and lighter in colour, while 10 mg and 20 mg tablets (on-demand doses) are larger. Many generic manufacturers include an imprint code or logo on one or both sides of the tablet, along with a score line to allow splitting if prescribed [4]. Always check the patient information leaflet supplied with your medicine, as it includes a description of your specific tablets.

If your tablets look significantly different from what you expected—different colour, size, or no markings—contact your pharmacy immediately before taking them. Counterfeit or incorrectly dispensed medicines can pose serious health risks, so it is essential to verify your tablets match the description on the dispensing label and leaflet.

PART 02

How to Use a Tadalafil Pill Identifier to Check Your Tablets

To identify your tadalafil tablets accurately, start by checking the dispensing label on your prescription box. This label states the strength (e.g., 'Tadalafil 10 mg tablets'), the manufacturer's name, and the quantity dispensed. Next, examine the tablets themselves: note the colour, shape, and any imprinted text, numbers or logos. Compare these details with the description in the patient information leaflet included in the box.

If you need additional confirmation, the Electronic Medicines Compendium (eMC) website provides official product information and images for many UK-licensed tadalafil products [12]. You can search by brand name (e.g., Cialis, Avarante) or by 'tadalafil' and the manufacturer. The Summary of Product Characteristics (SmPC) often includes a description of the tablet's appearance. Your pharmacist can also help verify your tablets if you have any doubts.

Never rely solely on unofficial online pill identifiers or images from non-UK sources, as tablet appearances differ internationally and counterfeit listings exist. If you purchased tadalafil from an unregistered online source, do not take the tablets and consult your GP or pharmacist. All legitimate UK pharmacies, including Cured Pharmacy (GPhC 9012511), supply medicines with full dispensing labels, patient leaflets and traceable batch information.

What to Do If Your Tablets Look Wrong

If your tadalafil tablets do not match the description on the label or leaflet, stop and contact the pharmacy that dispensed them immediately. Do not take the tablets until the pharmacist has confirmed they are correct. Dispensing errors are rare but can happen, and taking the wrong medicine or dose can be harmful. Your pharmacy will check the batch, review the prescription, and arrange a replacement if needed.

If you suspect your tablets are counterfeit—for example, if you bought them from an unregistered website, they arrived without a patient leaflet, or the packaging looks unprofessional—do not take them. Report the issue to the Medicines and Healthcare products Regulatory Agency (MHRA) via their Yellow Card scheme and consult your GP or pharmacist for a legitimate prescription. Counterfeit ED medicines have been found to contain incorrect doses, undeclared ingredients, or harmful substances.

At a glance

Tadalafil strengths
2.5 mg, 5 mg, 10 mg, 20 mg
Effect duration
Up to 36 hours (on-demand doses)
Daily dose
2.5 mg or 5 mg once daily
On-demand dose
10 mg or 20 mg, at least 30 min before
PART 03

Tadalafil Pill Identifier: Differences Between Brands and Generics

Branded Cialis and generic tadalafil contain the same active ingredient and work in the same way, but they often look different. Cialis tablets, manufactured by Lilly, have a consistent appearance: yellow, almond-shaped, film-coated, with the letter 'C' and the dose number embossed [4]. Generic tadalafil is made by multiple manufacturers (such as Teva, Accord, Actavis, and others), and each may use different colours, shapes and markings.

For example, Tadalafil 20 mg from Teva may be yellow and oval, while another manufacturer's version might be white and round. Both are equally effective and licensed by the MHRA, but the difference in appearance can cause confusion if you switch brands. Your pharmacist should inform you if the appearance of your regular medicine changes due to a different manufacturer being supplied.

Generic tadalafil is usually less expensive than branded Cialis. At Cured Pharmacy, generic Tadalafil starts at £7.95 (or £6.36 with code Ednew on your first order), while branded Cialis costs £12.00 (£9.60 with code Ednew). Both require a prescription following an online consultation reviewed by a UK prescriber. The choice between branded and generic is a matter of personal preference and cost, as the clinical effect is the same [4].

Question Short answer
What colour are tadalafil tablets? Branded Cialis is yellow; generics vary (white, yellow, orange, light brown) depending on manufacturer.
Do all tadalafil tablets have markings? Most have imprints (letters, numbers, logos). Branded Cialis shows 'C' and dose number; generics vary.
Can I split my tadalafil tablet? Only if it has a score line and your prescriber advises it. Use a tablet cutter for accuracy.
How do I know my tadalafil is genuine? Buy from a GPhC-registered pharmacy. Check the label, leaflet, and that tablets match the description.
What if my tablets look different from last time? Your pharmacy may have supplied a different manufacturer. Check the label and contact them to confirm.
PART 04

Understanding Tadalafil Strengths and Dosing Schedules

Tadalafil is available in four strengths in the UK: 2.5 mg, 5 mg, 10 mg and 20 mg. The 2.5 mg and 5 mg tablets are typically used for daily dosing, taken once a day at the same time, regardless of when you plan to have sex. This approach provides continuous support and can be helpful for men who prefer spontaneity [4]. The 10 mg and 20 mg strengths are used on-demand, taken at least 30 minutes before sexual activity, with effects lasting up to 36 hours.

Your prescriber will recommend the most suitable strength and schedule based on your health, other medicines, and how often you anticipate sexual activity. Starting doses are usually 10 mg on-demand or 2.5 mg daily, adjusted as needed. The maximum recommended dose is 20 mg on-demand (once per day) or 5 mg daily. Taking more than prescribed does not improve effectiveness and increases the risk of side effects such as headache, indigestion, back pain and dizziness [4].

Always take tadalafil exactly as prescribed. Do not split tablets unless your prescriber or pharmacist advises it and the tablet has a score line. If you are unsure which strength you have been prescribed, check the dispensing label and patient leaflet, or contact your pharmacy for clarification.

Can You Split Tadalafil Tablets?

Some tadalafil tablets have a score line, which indicates they can be split if your prescriber recommends a lower dose. For example, a 20 mg tablet with a score line may be split into two 10 mg doses if prescribed. However, not all tadalafil tablets are designed to be split, and doing so without guidance can lead to inaccurate dosing, especially with film-coated tablets.

Never split tablets on your own initiative. If your prescriber wants you to take a lower dose, they should prescribe the correct strength. If you have been advised to split your tablets, use a tablet cutter for accuracy and store any unused halves in the original packaging, away from moisture and light. If you are uncertain, ask your pharmacist before splitting any medicine.

Always Check Your Tablets

When you receive your tadalafil prescription, compare the tablets with the description in the patient leaflet. If anything looks wrong, contact your pharmacy before taking them to ensure you have the correct medicine and dose.

PART 05

How to Identify Genuine Tadalafil and Avoid Counterfeits

Counterfeit tadalafil is a significant problem, particularly when purchased from unregistered online sources or unlicensed sellers. Fake tablets may contain no active ingredient, incorrect doses, or dangerous substances such as industrial chemicals or other medicines. To ensure you receive genuine tadalafil, always use a registered UK pharmacy. Check the General Pharmaceutical Council (GPhC) register online to confirm the pharmacy is legitimate; Cured Pharmacy is registered as GPhC 9012511.

Genuine tadalafil supplied by a UK pharmacy will always come in a sealed box with a patient information leaflet, a dispensing label showing your name, the medicine name, strength, dose instructions, and the pharmacy's details. The tablets themselves should match the description in the leaflet. Be wary of websites offering tadalafil without a prescription, at prices far below the UK market rate, or with no verifiable contact details or GPhC registration.

If you have any doubt about the authenticity of your tadalafil, do not take it. Contact your pharmacist or GP, and report suspected counterfeit medicines to the MHRA. Using counterfeit ED medicines can be harmful and may delay proper diagnosis and treatment of underlying health conditions such as diabetes or cardiovascular disease [1][2].

PART 06

Tadalafil Pill Identifier: What to Check When You Receive Your Prescription

When your tadalafil prescription arrives, take a moment to check the following before taking any tablets. First, confirm the dispensing label matches your prescription: check your name, the medicine name ('Tadalafil' or 'Cialis'), the strength (e.g., 10 mg), and the dosing instructions. Next, open the box and ensure the patient information leaflet is present; read the section describing the tablet's appearance and compare it with your tablets.

Examine the tablets for colour, shape, size and any imprinted markings. Check the expiry date on the packaging and ensure the tablets are intact, not broken, discoloured or damaged. If anything looks incorrect, or if the packaging is damaged or unsealed, contact the pharmacy immediately before taking the medicine. Your pharmacist can verify the batch and arrange a replacement if necessary.

At Cured Pharmacy, all prescriptions are dispensed by qualified pharmacists and reviewed by UK-registered prescribers following an online consultation. If you have any questions about your tadalafil tablets, their appearance, or how to take them, our pharmacy team is available to help. Ensuring you have the correct medicine, at the right dose, is essential for safe and effective treatment of erectile dysfunction [4].

Storing Tadalafil Safely

Store tadalafil tablets in their original packaging, in a cool, dry place away from direct sunlight and moisture. Do not keep them in the bathroom or near a radiator, as heat and humidity can degrade the medicine. Keep tadalafil out of sight and reach of children and pets. Do not remove tablets from the blister pack or bottle until you are ready to take them, as this helps protect them from light and moisture.

Check the expiry date on the packaging and do not use tadalafil after this date. If you have leftover or expired tablets, return them to your pharmacy for safe disposal. Never flush medicines down the toilet or throw them in household waste, as this can harm the environment.

When to get urgent help

  • Erection lasting more than 4 hours (priapism) – go to A&E immediately to prevent permanent damage.
  • Sudden loss of vision in one or both eyes – stop tadalafil and seek urgent medical help.
  • Sudden decrease or loss of hearing, sometimes with ringing or dizziness – stop and contact a doctor urgently.
  • Chest pain during or after sex – stop activity, do not take more tadalafil, and call 999 if pain is severe or does not resolve.
  • Severe allergic reaction (swelling of face, lips, tongue or throat, difficulty breathing) – call 999 immediately.

Call 999 or go to A&E in an emergency, or contact NHS 111 for urgent advice.

Scientific References

  1. NHS. (n.d.). Erectile dysfunction (impotence). NHS website. https://www.nhs.uk/conditions/erection-problems-erectile-dysfunction/ [accessed 15 October 2026]
  2. National Institute for Health and Care Excellence. (n.d.). Erectile dysfunction. Clinical Knowledge Summaries. https://cks.nice.org.uk/topics/erectile-dysfunction/ [accessed 15 October 2026]
  3. Joint Formulary Committee. (n.d.). Tadalafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/tadalafil/ [accessed 15 October 2026]
  4. Electronic Medicines Compendium. (n.d.). Summaries of Product Characteristics and Patient Information Leaflets. https://www.medicines.org.uk/emc/ [accessed 15 October 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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Frequently Asked Questions

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01

How can I tell what strength my tadalafil tablet is?

Check the dispensing label on your prescription box, which states the strength (e.g., 'Tadalafil 10 mg'). Many tablets also have the dose embossed on them, such as 'C 10' on branded Cialis or a number on generics.

02

Are yellow tadalafil tablets always branded Cialis?

No. Branded Cialis is yellow, but some generic tadalafil tablets are also yellow. Check the imprint and packaging to confirm the manufacturer and whether it is branded or generic.

03

What should I do if my tadalafil tablets have no markings?

Some generic tadalafil tablets may have minimal or no visible markings, but they should still come with a patient leaflet describing their appearance. If in doubt, contact your pharmacy to verify the batch and manufacturer.

04

Can I use an online pill identifier for tadalafil?

Use only official UK sources such as the Electronic Medicines Compendium (eMC) or ask your pharmacist. Unofficial online identifiers may show non-UK products or counterfeit images.

05

Why do tadalafil tablets from different pharmacies look different?

Pharmacies may stock tadalafil from different manufacturers, each with its own appearance. All UK-licensed generics are equally effective, but the colour, shape and markings can vary.

06

Is it safe to take tadalafil if the tablet looks slightly different?

If the difference is minor (e.g., slight colour variation between batches from the same manufacturer), it is usually fine. If the tablet looks completely different or you are unsure, contact your pharmacy before taking it.

07

How do I report suspected counterfeit tadalafil?

Do not take the tablets. Report them to the MHRA via the Yellow Card scheme and inform your GP or pharmacist. If you bought them online, also report the website to the MHRA.

08

Can I request a specific brand or appearance of tadalafil?

You can request branded Cialis or a specific generic manufacturer, but availability depends on your pharmacy's stock. Discuss your preference during your consultation or with your pharmacist.

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Tarun Kumar, Superintendent Pharmacist

Medically reviewed by

Tarun Kumar, Superintendent Pharmacist (GPhC 2233073)

Last reviewed: 15 October 2026

Last updated on 15 October 2026.

Review History

Our experts continually monitor new findings in health and medicine, and we update our articles when new information becomes available.

Why this page was updated on 15 October 2026

Content checked and updated as part of our periodic review, to ensure accuracy and currentness.

Current version (15 October 2026)

Edited by: The Editorial Team

Medically reviewed by:

Tarun Kumar, GPhC No. 2233073, Superintendent Pharmacist


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