Like all medicines, Pritor can cause side effects, although not everybody gets them. These side effects may occur with certain frequencies, which are defined as follows: very common: affects more than 1 user in 10
common: affects 1 to 10 users in 100
uncommon: affects 1 to 10 users in 1,000
rare: affects 1 to 10 users in 10,000
very rare: affects less than 1 user in 10,000
not known: frequency cannot be estimated from the available data.
Common side effects may include:
Low blood pressure (hypotension) in users treated for reduction of cardiovascular events.
Uncommon side effects may include:
Upper respiratory tract infections (e.g. sore throat, inflamed sinuses, common cold), urinary tract infections, deficiency in red blood cells (anaemia), high potassium levels, feeling sad (depression), fainting (syncope), difficulty falling asleep, feeling of spinning (vertigo), slow heart rate (bradycardia), low blood pressure (hypotension) in users treated for high blood pressure, dizziness on standing up (orthostatic hypotension), shortness of breath, abdominal pain, diarrhoea, discomfort in the abdomen, bloating, vomiting, increased sweating, itching, drug rash, muscle pain (myalgia), back pain, muscle cramps, kidney impairment including acute kidney failure, pain in the chest, feeling of weakness, and increased level of creatinine in the blood.
Rare side effects may include:
Low platelet count (thrombocytopenia), allergic reaction (e.g. rash, itching, difficulty breathing, wheezing, swelling of the face or low blood pressure), feeling anxious, impaired vision, fast heart beat (tachycardia), upset stomach, dry mouth, abnormal liver function, severe drug rash, redness of skin, rapid swelling of the skin and mucosa (angioedema), eczema (a skin disorder), joint pain (arthralgia), pain in extremity, flu-like-illness, increased levels of uric acid, hepatic enzymes or creatine phosphokinase in the blood, and decreased haemoglobin (a blood protein).
Side effects of unknown frequency may include:
Increase in certain white blood cells (eosinophilia), severe allergic reaction (anaphylactic reaction), hives (urticaria), tendon pain, and sepsis* (often called "blood poisoning", is a severe infection with whole-body inflammatory response which can lead to death).
*In a long-term study involving more than 20,000 patients, more patients treated with telmisartan experienced sepsis compared with patients who received no telmisartan. The event may have happened by chance or could be related to a mechanism currently not known.
If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.