Like all medicines, Pantoprazole tablets can cause side effects, although not everybody gets them.
If you get any of the following side effects, stop taking these tablets and tell your doctor immediately, or contact the casualty department at your nearest hospital:
Serious allergic reactions (frequency rare): swelling of the tongue and/or throat, difficulty in swallowing, hives (nettle rash), difficulties in breathing, allergic facial swelling (Quincke’s oedema / angioedema), severe dizziness with very fast heartbeat and heavy sweating.
Serious skin conditions (frequency not known): blistering of the skin and rapid deterioration of your general condition, erosion (including slight bleeding) of eyes, nose, mouth/lips or genitals (Stevens-Johnson-Syndrome, Lyell-Syndrome, Erythema multiforme) and sensitivity to light.
Other serious conditions (frequency not known): yellowing of the skin or whites of the eyes (severe damage to liver cells, jaundice) or fever, rash, and enlarged kidneys sometimes with painful urination and lower back pain (serious inflammation of the kidneys).
Other side effects are:
Uncommon (affects 1 to 10 users in 1,000):
headache; dizziness; diarrhoea; feeling sick, vomiting; bloating and flatulence (wind); constipation; dry mouth; abdominal pain and discomfort; skin rash, exanthema, eruption; itching; feeling weak, exhausted or generally unwell; sleep disorders; fracture of the hip, wrist or spine.
Rare (affects 1 to 10 users in 10,000):
disturbances in vision such as blurred vision; hives; pain in the joints; muscle pains; weight changes; raised body temperature; swelling of the extremities (peripheral oedema); allergic reactions; depression; breast enlargement in males; agranulocytosis (severe reduction in number of white blood cells, which makes infections more likely), taste disorders.
Very Rare (affects less than 1 user in 10,000):
disorientation, thrombocytopenia (reduction in blood platelets, which increases risk of bleeding or bruising), leukopenia (decrease in the number of white blood cells (leukocytes)), pancytopenia (severe reduction in blood cells which can cause weakness, bruising or make infections more likely).
Not known (frequency cannot be estimated from the available data): pins and needles / tingling, hallucination, confusion (especially in patients with a history of these symptoms); decreased sodium level, decreased calcium level, decreased potassium level in blood.
If you are on Pantoprazole for more than three months it is possible that the levels of magnesium in your blood may fall. Low levels of magnesium can be seen as fatigue, involuntary muscle contractions, disorientation, convulsions, dizziness, increased heart rate. If you get any of these symptoms, please tell your doctor promptly.
Low levels of magnesium can also lead to a reduction in potassium or calcium levels in the blood. Your doctor may decide to perform regular blood tests to monitor your levels of magnesium.
Side effects identified through blood tests:
Uncommon (affects 1 to 10 users in 1,000);
an increase in liver enzymes.
Rare (affects 1 to 10 users in 10,000);
an increase in bilirubin; increased fats in the blood.
Very Rare (affects less than 1 user in 10,000);
a reduction in the number of blood platelets, which may cause you to bleed or bruise more than normal; a reduction in the number of white blood cells, which may lead to more frequent infections.
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.
Reporting of side effects
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the internet at www.mhra.gov.uk/yellowcard
By reporting side effects you can help provide more information on the safety of this medicine.