Like all medicines, Propranolol tablets can have side effects, although not everybody gets them. Stop treatment and contact a physician at once if the patient has the following symptoms of an: Intolerance to Propranolol tablets such as slow heart rate and low blood pressure causing dizziness, light-headedness, fainting or blurred vision; allergic reaction such as itching, difficulty breathing or swelling of the face, lips, throat or tongue.
Tell the physician if the patient notices any of the following side effects or notice any other effects not listed: Common (Less than 1 in 10 Users):
Tiredness, cold extremities, difficulty in sleeping (these symptoms usually disappear); slow or irregular heartbeat, Raynaud’s syndrome; nightmares.
Uncommon (Less than 1 in 100 Users):
Feeling or being sick, or diarrhoea (these symptoms usually disappear).
Rare (Less than 1 in 1000 Users):
Propranolol may alter the number and types of your blood cells. If the patient notices increased bruising, nosebleeds, sore throats or infections, the patient should tell the physician who may want to give the patient a blood test; worsening of heart failure, low blood pressure/fainting on standing, dizziness, worsening of intermittent claudication; skin rash, worsening of psoriasis, hair loss, dry flaky skin, red/ itchy skin; hallucinations, mood changes, pins and needles, psychoses, memory loss; patients with asthma or a history of breathing problems may experience difficulty in breathing; dry eyes, visual disturbances.
Very Rare (Less than 1 in 10,000 Users):
Changes in blood sugar levels.
Not Known (Cannot Be Estimated From The Available Data):
Signs of hyperthyroidism may be hidden; changes in blood fats, changes in kidney function; worsening of angina, headache, depression, confusion; constipation, dry mouth, conjunctivitis; changes in sex drive or potency; joint pain.