Tadalafil ( Generic Cialis )

• One 10mg tablet as needed at least 30-minutes before sexual activity. You won't get an erection just by taking the pill; sexual stimulation is necessary for it to work. Swallow the tablet with a glass of water. 

 • Can be taken with or without food  

• Avoid drinking grapefruit juice as this may increase the risk of side effects 

 • Drinking excessive alcohol can temporarily reduce patients’ ability to get an erection and increase the risk of postural hypotension, causing dizziness. To get the maximum benefit from their medicine, patients are advised not to drink large amounts of alcohol before sexual activity 

 • Should be taken at least 30 minutes before anticipated sexual activity 

 • Maximum recommended dose of one tablet a day  

• Not recommended for continuous daily use – patients requiring frequent use (i.e. at least twice weekly) should see their doctor 

• Patients who are not able to achieve a sufficient erection for satisfactory sexual activity even after several attempts on different occasions should see their doctor  

• Patients whose ED worsens after using Tadalafil  should see their doctor

You should inform your healthcare provider about all the medications you're currently taking. Sildenafil can interact with certain medications, especially nitrates used forchest pain, which can lead to a dangerous drop in blood pressure.

Side effects and safety information 

Like all medicines, this medicine can cause side effects, although not everybody gets them. These effects are normally mild to moderate in nature. 

Common (may affect up to 1 in 10 people) 

 - headache, back pain, muscle aches, pain in arms and legs, facial flushing, nasal congestion and indigestion  

Uncommon (may affect up to 1 in 100 people) - dizziness, stomach ache, feeling sick, being sick (vomiting), reflux, blurred vision, eye pain, difficulty in breathing, presence of blood in urine, prolonged erection, pounding heartbeat sensation, a fast heart rate, high blood pressure, low blood pressure, nose bleeds, ringing in the ears, swelling of the hands, feet or ankles and feeling tired 

 If side effects do not subside, it's important to report them to a healthcare provider.  

There are also some serious side effects to be aware of: 

If you experience any of the following side effects STOP using the medicine and SEEK medical help immediately:  

• Priapism: An erection lasting more than 4 hours, which requires immediate medical attention to avoid permanent damage. This occurs rarely. 
• Sudden Vision Loss: a sudden decrease or loss of vision, distorted, dimmed, blurred central vision or sudden decrease of vision This can be a sign of a serious eye condition called non-arteritic anterior ischemic optic neuropathy (NAION). Immediate medical attention is necessary. (frequency not known) 
• Sudden Hearing Loss: Accompanied by ringing in the ears (tinnitus) or dizziness. Stop taking Cialis Together and seek medical advice immediately. 
• Allergic reaction: this occurs uncommonly. Symptoms include sudden wheeziness, difficulty breathing or dizziness, swelling of the eyelids, face, lips or throat, rashes 
• Chest pains: this occurs uncommonly. If this occurs before, during or after intercourse, get in a semi-sitting position and try to relax. DO NOT use nitrates to treat chest pain. Seek immediate medical help 
• Stevens-Johnson Syndrome (SJS) which is a rare, serious disorder of the skin causing flu-like symptoms and a painful rash that spreads and blisters 

• Always read the Tadalafil patient information leaflet and consult your GP or pharmacist for full details.   

Please check with the Clinical Team at Happy Pharmacy or your doctor before starting treatment.  

Do not take Tadalafil tablets if you:  

- do not have an erection problem, as this medicine will not provide any benefit to you  

- are allergic to tadalafil or any of the other ingredients of this medicine listed in the patient information leaflet. 

- take any medicines called nitrates or nitric oxide donors (such as glyceryl trinitrate, isosorbide mononitrate, isosorbide dinitrate for the relief of chest pain or heart failure, or nicorandil, molsidomine or sodium nitroprusside), as the combination may lead to a dangerous fall in blood pressure - take amyl nitrite also known as “poppers” as recreational drugs, as the combination may lead to a dangerous fall in blood pressure 

 - have been advised by your doctor to avoid sexual activity because of a problem with your heart or blood vessels, such as recent heart attack (within the last 90 days) or stroke (within the last 6 months), unstable angina or severe cardiac failure 

 - have low blood pressure or uncontrolled high blood pressure 

 - have ever had loss of vision because of nonarteritic anterior ischemic optic neuropathy (NAION), a condition described as “stroke of the eye”  

- take riociguat or other medicines belonging to a group called guanylate cyclase stimulators. These medicines are used to treat pulmonary arterial hypertension (i.e. high blood pressure in the lungs) and chronic thromboembolic pulmonary hypertension (i.e. high blood pressure in the lungs secondary to blood clots) 

 - have a deformed penis (such as angulation, cavernosal fibrosis or Peyronie’s disease) 

problems with your liver or kidneys  

blood diseases (e.g leukaemia, sickle cell anaemia, multiple myeloma) 

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)  

Always read the patient information leaflet and inform your doctor or the Happy Pharmacy Clinical Team of any medications you're taking before starting Tadalafil. Tadalafil does interact with other medication and may not be suitable if you have pre-existing conditions, always check before starting.  

• Avoid using Tadalafil if you're taking nitrate drugs (e.g., glyceryl trinitrate, isosorbide mononitrate) or nitric oxide donors (e.g., amyl nitrite, nicorandil) due to the risk of a dangerous drop in blood pressure. 
• Do not use with riociguat or other guanylate cyclase stimulators, used for pulmonary arterial hypertension. 

Inform your healthcare provider if you're taking: 

Alpha blockers (e.g., alfuzosin, doxazosin) for prostate issues or high blood pressure. 

Other hypertension medications. 

Finasteride for benign prostatic hyperplasia. 

Antifungal medications (e.g., itraconazole, ketoconazole). 

Antibiotics (e.g., rifampicin, erythromycin). 

Protease inhibitors (e.g., ritonavir, saquinavir) for HIV/AIDS. 

Anticonvulsants (e.g., phenobarbital, phenytoin). 

Other erectile dysfunction therapies. 

Theophylline for asthma. 

Cimetidine for heartburn and stomach ulcers. 

 • Patients should see their doctor at the earliest opportunity and no later than 6 months after being supplied with Tadalafil to check they do not have any underlying conditions that could be causing their ED 

• Patients should be advised to STOP taking Tadalafil and seek immediate medical help if they experience any of the following side effects: 

 • long-lasting (more than 4 hours), painful erection  

• sudden vision defect or loss 

 • sudden decrease or loss of hearing 

 • chest pain within 48 hours (2 days) of taking Tadalafil; dizziness or nausea during or after sex. If this occurs, patients should be advised to get into a semi-sitting position and try to relax. DO NOT TAKE NITRATES to treat chest pain 

While there are many online platforms offering Tadalafil, it’s essential to ensure you're purchasing from a trusted and legitimate supplier.

At Happy Pharmacy, we prioritise your safety and peace of mind.

We are legally compliant and regulated.

All online pharmacies in the UK must be registered with the General Pharmaceutical Council (GPhC), which oversees and maintains a register of legitimate pharmacists and pharmacies, including online providers. Happy Pharmacy adheres strictly to these regulations, ensuring you receive safe and authentic medication.
Choose Happy Pharmacy for a reliable, secure, and professional service tailored to your needs.

See our GPhC registration