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Safinamide 100 mg Film-Coated Tablets – patient leaflet, side effects, dosage

Last updated: · Text from the MHRA, as of · About this document

Medicine status: Prescription only (POM) Details

Medicine strength:
100 mg
Other strengths and forms:
Contains active substance:
ATC code:

Patient leaflet - Safinamide 100 mg film-coated tablets

What Safinamide is and what it is used for

Safinamide is a medicine that contains the active substance safinamide. It acts to increase the level of a substance called dopamine in the brain, which is involved in the control of movement and is present in reduced amounts in the brain of patients with Parkinson’s disease. Safinamide is used for the treatment of Parkinson’s disease in adults.

In mid- to late-stage patients experiencing sudden switches between being “ON” and able to move and being “OFF” and having difficulties moving about, Safinamide is added to a stable dose of the medicine called levodopa alone or in combination with other medicines for Parkinson’s disease.

2.

What you need to know before you take Safinamide

Do not take Safinamide:

–

If you are allergic to safinamide or any of the other

ingredients of this medicine (listed in section 6).

–

If you are taking any of the following medicines:

–

Monoamine oxidase (MAO) inhibitors such as

selegiline, rasagiline, moclobemide, phenelzine, isocarboxazid, tranylcypromine (e.g. for treatment of Parkinson’s disease or depression, or used for any other condition).

–

Pethidine (a strong pain killer).

You must wait at least 7 days after stopping Safinamide treatment before starting treatment with MAO inhibitors or pethidine.

–

If you have been told that you have severe liver

problems

–

If you have an eye condition which might put you at risk

of potential damage to your retina (the light sensitive layers at the back of your eyes), e.g. albinism (lack of pigment in your skin and eyes), retinal degeneration (loss of cells from light sensitive layer at the back of the eye), or uveitis (inflammation inside of the eye), inherited retinopathy (inherited disorders of the vision), or severe progressive diabetic retinopathy (a progressive decrease of the vision due to diabetes).

Warnings and precautions

Talk to your doctor before taking Safinamide

–

If you have liver problems

  • Patients and carers should be made aware that certain compulsive behaviours such as compulsions, obsessive thoughts, pathological gambling, increased libido, hypersexuality, impulsive behaviour and compulsive spending or buying have been reported with other medicines for Parkinson’s disease.

–

Uncontrollable jerky movements may occur or worsen

when Safinamide is used together with levodopa.

Children and adolescents

Safinamide is not recommended for use in children and adolescents, below 18 years old due to the lack of data on safety and efficacy in this population.

Other medicines and Safinamide

Tell your doctor or pharmacist if you are taking or have recently taken or might take any other medicines.

Ask your doctor for advice before taking any of the following medicines together with Safinamide:

–

Cold or cough remedies containing dextromethorphan, ephedrine or pseudoephedrine

–

Medicines

called selective serotonin reuptake inhibitors (SSRIs) typically used to treat anxiety disorders, and some personality disorders (e.g. fluoxetine or fluvoxamine)

–

Medicines called serotonin–norepinephrine reuptake inhibitors (SNRIs), used in the treatment of major depression and other mood disorders, such as venlafaxine

–

Medicines for high cholesterol such as rosuvastatin, pitavastatin, pravastatin

–

Fluoroquinolone antibiotic such as ciprofloxacin

–

Medicines that affect the immune system such as methotrexate

–

Medicines to treat metastatic carcinoma such as topotecan

–

Medicine to treat pain and inflammation such as diclofenac

–

Medicines to treat type 2 diabetes such as glyburide, metformin

–

Medicines to treat virus infection such as aciclovir, ganciclovir

Pregnancy and breast-feeding

If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor for advice before taking this medicine.

Pregnancy

Safinamide should not be used during pregnancy or by women of childbearing potential not practicing adequate contraception.

Breast Feeding

Safinamide is likely to be excreted in breast milk. Safinamide should not be used during breast-feeding.

Driving and using machines

Somnolence and dizziness may occur during safinamide treatment; you should be cautious about operating hazardous machines or driving, until you are reasonably certain that Safinamide does not affect you in any way.

Ask your doctor for advice prior to driving or using machines.

3.

How to take Safinamide

Always take this medicine exactly as your doctor has told you. Check with your doctor if you are not sure.

The recommended starting dose of Safinamide is one 50 mg tablet that may be increased to one 100 mg tablet, taken once daily preferably in the morning by mouth with water. Safinamide may be taken with or without food. If you suffer from moderately reduced liver function, you should not take more than 50 mg a day; your doctor will advise if this applies to you.

If you take more Safinamide than you should

If you have taken too many Safinamide tablets, you may develop raised blood pressure, anxiety, confusion, forgetfulness, sleepiness, lightheadedness; feel sick or be sick; dilated pupils or develop involuntary jerky movements. Contact your doctor immediately and take the Safinamide pack with you.

If you forget to take Safinamide

Do not take a double dose to make up for a forgotten dose. Skip the missed dose and take the next dose at the time you normally take it.

If you stop taking Safinamide

Do not stop taking Safinamide without first talking to your doctor. If you have any further questions on the use of this medicine, ask your doctor or pharmacist.

4.

Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them. Seek medical advice in case of hypertensive crisis (very high blood pressure, collapse), neuroleptic malignant syndrome (confusion, sweating, muscle rigidity, hyperthermia, increase level of enzyme creatine kinase in your blood), serotonin syndrome (confusion, hypertension, muscle stiffness, hallucinations), and hypotension.

The following side effects have been reported in patients at a mid- to late-stage of Parkinson’s disease (patients taking safinamide as add-on to levodopa alone or in combination with other medicines for Parkinson’s disease):

Common (may affect up to 1 in 10 people): insomnia, difficulty in performing voluntary movements, feeling sleepy, dizziness, headache, worsening of Parkinson’s disease, clouding of the lens of the eye, fall in blood pressure when rising to a standing position, nausea, falling.

Uncommon (may affect up to 1 in 100 people): urine infection, skin cancer, low iron in your blood, low white cell count, red blood cell abnormality, decreased appetite, high fat in blood, increased appetite, high blood sugar, seeing things that are not there, feeling sad, abnormal dreams, fear and worry, confusional state, mood swings, increased interest in sex, abnormal thinking and perception, restlessness, sleep disorder, numbness, unsteadiness, loss of sensation, sustained abnormal muscle contraction, head discomfort, difficulty in speaking, fainting, memory impairment, blurring of vision, blind spot, double vision, aversion to light, disorders of the light sensitive layer at the back of your eye, redness of the eyes, increased pressure in the eye, sensation of room spinning, feeling of heart beating, fast heartbeat, irregular heartbeat, slowed heartbeat, high blood pressure, low blood pressure, veins that have become large and twisted, cough, difficult breathing, runny nose, constipation, heartburn, vomiting, dry mouth, diarrhoea, abdominal pain, burning stomach, wind, feeling full, drooling, mouth ulcer, sweating, itching, sensitive to light, redness of the skin, back pain, joint pain, cramps, stiffness, pain in legs or arms, muscle weakness, sensation of heaviness, increased urination at night, pain upon urination, difficulty in having sex in males, fatigue, feeling weak, unsteady walking, swelling of your feet, pain, feeling hot, weight loss, weight gain, abnormal blood tests, high fat in your blood, increased sugar in your blood, abnormal ECG, liver function test abnormal, abnormal urine tests, blood pressure decreased, blood pressure increased, abnormal eye test, fracture of your foot.

Rare (may affect up to 1 in 1000 people) pneumonia, skin infection, sore throat, nasal allergy, tooth infection, viral infection, noncancerous skin conditions/growth, white blood cell abnormalities, severe loss of weight and weakness, increased potassium in blood, uncontrollable urges, clouding of consciousness, disorientation, wrong perception of images, reduced interest in sex, thoughts that you cannot get rid of, feeling that someone is out to get you, premature ejaculation, uncontrollable urge to sleep, fear of social situations, thoughts of suicide, clumsiness, easily distracted, loss of taste, weak/slow reflexes, radiating pain in the legs, continuous desire to move your legs, feeling sleepy, eye abnormalities, progressive diminution of vision due to diabetes, increased tears, night blindness, cross eyed, heart attack, tightening/narrowing of blood vessel, severe high blood pressure, tightening of the chest, difficulty in speaking, difficulty in/painful swallowing, peptic ulcer, retching, stomach bleeding, jaundice, loss of hair, blister, skin allergy, skin conditions, bruising, scaly skin, night sweats, pain of skin, discolouration of the skin, psoriasis, flaky skin, inflammation of spinal joints due to an autoimmune disorder, pain in your sides, swelling of joints, musculoskeletal pain, muscular pain, neck pain, joint pain, cyst in the joint, uncontrollable urge to urinate, increased urination, passing of pus cells in urine, urinary hesitation, prostate problem, breast pain, drug effect decreased, drug intolerance, feeling cold, feeling unwell, fever, dryness of skin, eye and mouth, abnormal blood tests, heart murmur, abnormal heart tests, bruising/ swelling after injury, blood vessel blockage due to fat, head injury, mouth injury, skeletal injury, gambling.

Reporting of side effects

If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.

5.

How to store Safinamide

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiry date which is stated on the carton and blister after “EXP’’

The expiry date refers to the last day of that month.

This medicine does not require any special storage conditions.

Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help to protect the environment.

6.

Contents of the pack and other information

What Safinamide contains

The active substance is safinamide. Each tablet contains 50 mg or 100 mg of safinamide (as mesilate).

The other ingredients (excipients) are:

Tablet core: Microcrystalline cellulose, Hydroxy Propyl Cellulose, Crospovidone type A, Silica, colloidal anhydrous, Magnesium stearate

Film-coating: Opadry Red 03F550080 contain Hypromellose (E464), Titanium Dioxide (E171), Macrogol/ PEG (E1521), Talc (E553b), Iron oxide Red (E172).

What Safinamide looks like and contents of the pack

50 mg: Red colored, round shaped, biconvex, beveled edge, film coated tablets, debossed “50” on one side and plain on other side.

100 mg: Red colored, round shaped, biconvex, beveled edge, film coated tablets, debossed “100” on one side and plain on other side.

Safinamide is supplied in OPA/Al/PVC-Alu blister packs of containing 14, 28, 30, 90 or 100 film-coated tablets.

Not all pack sizes may be marketed.

Marketing Authorisation Holder and Manufacturer

Zydus Pharmaceuticals UK Ltd

Sandretto Building Weedon

Northampton NN7 4PP UK

This leaflet was last revised in 04/2026.

To request a copy of this leaflet in Braille, large print or audio format, contact the licence holder at the above address or telephone: 0800 9956034 / email: DrugSafety@ZydusUK.com

Material Code

Back Side

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 58839/0141

Last revision stated in the text: April 2026 · MHRA data as of 13 October 2026

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Safinamide 100 mg film-coated tablets

Prescription needed? Yes, prescription-only medicine (POM)
Active substance Safinamide
Strength 100 mg
Pharmaceutical form Oral tablet
Orange coloured, round shaped, biconvex, approximately 9.1 mm, film-coated tablets debossed with “SA” on one side and “100” on the other side.
How is it taken Oral
Excipients Cellulose, microcrystalline (Grade 200) Crospovidone (Type A), Silica, colloidal anhyrous, Magnesium Stearate, Hypromellose 2910 (3 mPas & 6 mPas) Potassium aluminium silicate/Titanium Dioxide/Iron Oxide Macrogol 6000, Iron Oxide Red, Titanium Dioxide
Is it available? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life 2 years
Storage This medicinal product does not require any special storage conditions.
Drug group (ATC) Anti-Parkinson-Drugs, monoamine oxidase -B inhibitors
  1. N Nervous system drugs
    1. N04 Anti-parkinson drugs
      1. N04B Dopaminergic agents
        1. N04BD MAO B Inhibitors, dopaminergic anti-parkinson drugs
          1. N04BD03 safinamide
Marketing authorisation PL 16363/0816 (first authorised 21 March 2025), PL 58839/0141
Marketing authorisation holder Milpharm Limited
Codes BNF 04090100

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.1.0 of 12 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.