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Common side effects
Headache, indigestion, back or muscle pain, facial flushing and nasal congestion may occur. Tell your doctor or pharmacist about persistent or troublesome symptoms.
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Important interactions
Do not use with nitrates or riociguat. Other blood pressure medicines, certain antibiotics and other erectile dysfunction medicines also require assessment. Tell your healthcare professional about every product you use.
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Emergency symptoms
Chest pain, severe allergy, sudden loss of vision or hearing and an erection lasting more than four hours require urgent assessment. Call 112 for severe symptoms. Do not take nitrates yourself for chest pain; tell the medical team that you have taken tadalafil.
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What action should be taken for different symptoms?
| Symptom group | Examples | Action to take |
|---|---|---|
| Troublesome symptoms | Headache, indigestion, back pain | Doctor / pharmacist if symptoms persist |
| Urgent assessment | Chest pain, sudden loss of vision / hearing | Prompt medical help |
| Prolonged erection | Lasting more than four hours | Urgent assessment |
This table does not cover all side effects. Consult a healthcare professional if you are unsure how serious a symptom is.
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Why is the interaction with nitrates important?
Nitrates can include medicines used for conditions such as chest pain. Taken with tadalafil, they can lower blood pressure dangerously. Telling the emergency medical team when you took tadalafil is important for choosing treatment.
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What information is needed to assess risk?
Your blood pressure, heart health, previous vision loss and kidney / liver function affect treatment suitability. Also disclose medicine allergies and non-prescription products. Your health history cannot be assessed solely from the tablet strength on the pack.
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A symptom record helps with the appointment
Note when the symptom started, how long it lasted and any other products you used that day. This record helps with the doctor's appointment; it must not be used to test a reaction by trying the medicine again. Bring the pack and patient leaflet to the appointment.
SOURCES
Basis of the information
01This text is not a personal diagnosis or treatment recommendation. Sources may contain product information from different countries; follow the current leaflet for the product you use in Türkiye and your doctor's assessment.