Haloperidol Advanz Pharma Side Effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.
Look out for serious side effects.
Tell the doctor or nurse straight away if any of the following is noticed or suspected. Urgent medical treatment may be needed.
Problems with the heart: Abnormal heart rhythm: this stops the heart working normally and may cause loss of consciousness.
Abnormally fast heart beat.
Extra heart beats.
Heart problems are uncommon in people using Haloperidol Injection (may affect up to 1 in 100 people). Sudden deaths have occurred in patients using this medicine, but the exact frequency of these deaths is unknown. Cardiac arrest (the heart stops beating) has also occurred in people taking antipsychotic medicines.
A serious problem called 'neuroleptic malignant syndrome': This causes a high fever, severe muscle stiffness, confusion and loss of consciousness. It is rare in people using Haloperidol Injection (may affect up to 1 in 1,000 people).
Problems controlling movements of the body or limbs (extrapyramidal disorder), such as: Movements of the mouth, tongue, jaw and sometimes limbs (tardive dyskinesia).
Feeling restless or difficulty sitting still, increased body movements.
Slow or reduced body movements, jerking or twisting movements.
Muscle tremors or stiffness, a shuffling walk.
Being unable to move.
Lack of normal facial expression that sometimes looks like a mask.
These are very common in people using Haloperidol Injection (may affect more than 1 in 10 people). If the patient gets any of these effects, an additional medicine may be given.
Severe allergic reaction that may include: A swollen face, lips, mouth, tongue or throat.
Difficulty swallowing or breathing.
Itchy rash (hives).
An allergic reaction is uncommon in people using Haloperidol (may affect up to 1 in 100 people).
Blood clots in the veins usually in the legs (deep vein thrombosis or DVT): These have been reported in people taking antipsychotic medicines. The signs of a DVT in the leg include swelling, pain and redness in the leg, but the clot may move to the lungs causing chest pain and difficulty in breathing. Blood clots can be very serious, so tell the doctor straight away if any of these problems occur.
Tell the doctor straight away if any of the previously mentioned serious side effects occur.
Other side effects: Tell the doctor if any of the following side effects occur.
Very common - (may affect more than 1 in 10 people): Feeling agitated; Difficulty in sleeping; Headache.
Common - (may affect up to 1 in 10 people): Serious mental health problem, such as believing things that are not true (delusions) or seeing, feeling, hearing or smelling things that are not there (hallucinations).
Depression.
Abnormal muscle tension.
Feeling dizzy, including upon sitting up or standing up.
Feeling sleepy.
Upward movement of the eyes or fast eye movements that are uncontrollable.
Problems with vision, such as blurred vision.
Low blood pressure.
Nausea, vomiting.
Constipation.
Dry mouth or increased saliva.
Skin rash.
Being unable to pass urine or empty the bladder completely.
Difficulty getting and keeping an erection (impotence).
Weight gain or loss.
Changes that show up in blood tests of the liver.
Uncommon - (may affect up to 1 in 100 people): Effects on blood cells: low number of all types of blood cells, including severe decrease in white blood cells and low number of 'platelets' (cells that help blood to clot).
Feeling confused.
Loss of sex drive or decreased sex drive.
Fits (seizures).
Stiff muscles and joints.
Muscle spasms, twitching or contractions that cannot be controlled, including a spasm in the neck causing the head to twist to one side.
Problems walking.
Being short of breath.
Inflamed liver, or liver problem that causes yellowing of the skin or eyes (jaundice).
Increased sensitivity of the skin to sunlight.
Itching.
Excessive sweating.
Changes in menstrual cycle (periods), such as no periods, or long, heavy, painful periods.
Unexpected production of breast milk.
Breast pain or discomfort.
High body temperature.
Swelling caused by fluid buildup in the body.
Rare - (may affects up to 1 in 1,000 people): High level of the hormone 'prolactin' in the blood.
Narrowed airways in the lungs, causing difficulty breathing.
Difficulty or being unable to open the mouth.
Problems having sex.
The following side effects have also been reported, but their exact frequency is unknown: High level of 'antidiuretic hormone' in the blood (syndrome of inappropriate antidiuretic hormone secretion).
Low level of sugar in the blood.
Swelling around the voice box or brief spasm of the vocal cords, which may cause difficulty speaking or breathing.
Sudden liver failure.
Decreased bile flow in the bile duct.
Flaking or peeling skin.
Inflamed small blood vessels, leading to a skin rash with small red or purple bumps.
Breakdown of muscle tissue (rhabdomyolysis).
Persistent and painful erection of the penis.
Enlarged breasts in men.
Low body temperature.
Reporting of side effects: If any of the side effects occur, talk to the doctor, pharmacist or nurse. This includes any possible side effects not previously listed.
By reporting side effects, more information on the safety of this medicine can be provided.