Sidena 50mg Tablets (sildenafil)

Free delivery on orders over €50


Sidena 50mg Tablets Sildenafil

Our Commitment 

Phelan's Pharmacy Expertise
With over 30 years in the industry, our team is equipped with the knowledge and experience to guide you to the best products for your needs. Our legacy is built on trust, quality, and community care.
This medication is dispensed by Phelans Pharmacy (Ireland) controlled under the guidance of a Phelans pharmacist.

What is Sidena?

Sidena is a non-prescription medication intended for the treatment of erectile dysfunction in adult males. It addresses the challenges associated with attaining or sustaining an erection for sexual activity. Sidena serves as a generic alternative to Viagra, a widely-used medication utilised for the management of erectile dysfunction in adult males. It contains the same active ingredient, sildenafil, and works in the same way as Viagra. Sidena is conveniently obtainable in packs of four or eight tablets, with each tablet containing a 50mg dosage strength.

Can I buy Sidena Online in Ireland?

You can safely and conveniently buy Sidena online from Phelans Pharmacy. We understand that discussing erectile dysfunction (ED) can be uncomfortable, which is why we offer a discreet and professional online assessment to ensure Sidena (Sildenafil) is a suitable and safe treatment option for you. Our experienced pharmacists will review your assessment and determine if Sidena is the right choice for you. 

Here's how you can order Sidena online with ease:

  1. Order your Sidena from 
  2. One of our experienced and professional pharmacists will call you to ask you some brief questions about your health and lifestyle. This helps our pharmacists evaluate your suitability for Sidena, and answer any questions that you might have. Rest assured; your information will be treated with utmost confidentiality.
  3. Read the Patient Information Leaflet: It's important to be well-informed about the medication you are taking. Pleaseclick here to access the Patient Information Leaflet and familiarise yourself with the details.
  4. Delivery or in-store collection: Once approved by our pharmacist, your medication will be delivered in discreet packaging to the address of your choice. Alternatively, you can opt to collect it from your local Phelans Pharmacy, ensuring convenience and privacy.

Is Sidena Available Over the Counter?

Sidena is an over-the-counter medication in Ireland, meaning you do not need a prescription to purchase it. However, a consultation with a pharmacist is required before supply.


Both products Viagra and Sidena contain 50mg of sildenafil. 

Only one sildenafil product (either Viagra or Sidena) should be used at a time.

The maximum purchase allowed of any brand of sildenafil 50mg tablets is 16 tablets. If a quantity exceeding the maximum of 16 tablets of Sildenafil 50mg is ordered, the balance will be refunded.

The pharmacist will have to have a telephone consultation with you before supply of this medicine.

Sale of sildenafil products are limited to the Republic of Ireland. We do not sell internationally.

Keep out of the sight and reach of children. 




Product Details:

  • Name: Sidena 50 mg Tablets
  • Form: Light blue, round, slightly dotted tablet
  • Markings: Cross breaking notch on one side and an imprint of “50” on the other side


  • Active Ingredient: Sildenafil citrate equivalent to 50 mg of sildenafil per tablet.
  • Excipient with Known Effect: Contains less than 1 mmol sodium (23 mg) per tablet, essentially ‘sodium-free’.
  • Full Ingredients List: Please see section 6.1 in the enclosed leaflet for a complete list of ingredients.

Dosage & Administration:

  • Recommended Dosage: One tablet as needed, approximately one hour before sexual activity.
  • Maximum Frequency: Do not exceed one tablet in a 24-hour period.
  • Advice on Consumption: Can be taken with or without food. Avoid taking with grapefruit juice.

Safety Information:

  • Age Restriction: For adult men aged 18 and over.
  • Not Suitable For: Women, minors, individuals who do not have erectile dysfunction, and those with certain health conditions as listed in the contraindications.
  • Health Advice: Consultation with a healthcare professional is advisable before use, especially for men with underlying health conditions.


  • Storage: Keep the medication in a cool, dry place away from direct sunlight.
  • Keep Out of Reach: Ensure it is kept out of sight and reach of children.

How does Sidena (Sildenafil) work?

Sidena works by relaxing the blood vessels in the penis, allowing more blood to flow into it when sexually aroused. This increased blood flow helps to achieve and maintain an erection.

How should I take Sidena?

The recommended dose of Sidena is 50mg (1 tablet) once daily as needed, taken approximately one hour before sexual activity. Swallow the tablet whole with water, and do not take more than 1 tablet daily.

Is Sidena as Effective as Viagra?

Yes, Sidena is as effective as Viagra because they both contain the same active ingredient, sildenafil. The effectiveness of these medications depends on individual responses, but they are medically equivalent.

Can I use Viagra and Sidena at the same time?

No, you should not use Viagra and Sidena at the same time, as both contain the same active ingredient, sildenafil. Taking more than one sildenafil product can result in an overdose.

How do I know if Sidena is right for me?

We offer Sidena both online and in-store for adult men (18 years and older) experiencing difficulties with their erections. It is crucial to consult with a healthcare professional before taking Sidena to ensure its suitability based on individual medical history and current medications, as well as to receive personalised dosage recommendations. Count on Phelans Pharmacy for dependable assistance and convenient access to Sidena. Your health and well-being are our primary concerns. Please note that Sidena is not intended for use by women, individuals under 18 years of age, or those without erectile dysfunction.

Can I use Sidena if I have underlying medical conditions?

Not all individuals with underlying medical conditions can safely use Sidena. If you have a history of severe heart disease, stroke, liver disease, kidney disease, or certain eye conditions, among others, Sidena might not be suitable for you. Always consult your doctor before starting Sidena.

This is why you’ll be asked a few straightforward questions about your health before we supply you with Sidena tablets.

What are the side effects of Sidena?

Most men find Sidena effective and do not experience significant side effects. However, some men may experience nausea, facial flushing, hot flush, indigestion, blurred vision, visual disturbance, stuffy nose, and dizziness. Very rare side effects include allergic reactions, chest pains, fits, and prolonged painful erections, which require immediate medical attention.

Can I use Sidena with other erectile dysfunction treatments?

You should not use Sidena concurrently with other erectile dysfunction treatments unless directed by a healthcare provider. This includes both other oral medications and topical treatments. Using multiple treatments together can increase the risk of side effects and may not increase efficacy.

Can I take Sidena with other medications?

Some medications can interact with Sidena, notably nitrates used to treat angina and heart disease. Always disclose any medications you are currently taking to your healthcare provider before starting Sidena.

At Phelans Pharmacy, our commitment is to provide you with the highest quality of care and discretion. Our team of experienced pharmacists can answer any questions you may have, and provide personalised advice to ensure Sidena (Sildenafil) is the right choice for you. Contact us today for more information!

Shipping and Returns

Free delivery on online orders over €50*

View our full shipping and returns policy here

*Limited exclusions apply - you will be advised of this before order confirmation