Premax 100 mg tablets EFG

Package leaflet: Information for the user

Introduction

Package leaflet: information for the user

Premax 100 mg tablets EFG Pregabalin

Read the entire leaflet carefully before you start taking this medicine, because it contains important information for you.

• Keep this leaflet, as you may need to read it again.
• If you have any questions, ask your doctor or pharmacist.
• This medicine has been prescribed for you only, and you should not give it to other people, even if they have the same symptoms as you, because it may harm them.
• If you experience any adverse effects, consult your doctor or pharmacist, even if they are adverse effects not listed in this leaflet. See section 4.

Leaflet contents

1. What Premax is and what it is used for
2. What you need to know before taking Premax
3. How to take Premax
4. Possible side effects
5. How to store Premax
6. Contents of the pack and other information

1. What Premax is and what it is used for

Pregabalin belongs to a group of medicines used to treat epilepsy, neuropathic pain, and generalized anxiety disorder (GAD) in adults.

Peripheral and central neuropathic pain: Premax is used to treat chronic pain caused by nerve damage. Various medical conditions can cause peripheral neuropathic pain, such as diabetes or herpes. The sensation of pain may be described as warmth, burning, throbbing, shooting, stabbing, sharp pain, cramps, continuous pain, tingling, numbness, or pins and needles. Peripheral and central neuropathic pain may also be associated with mood changes, sleep disturbances, fatigue (tiredness), and may affect physical and social activities and overall quality of life.

Epilepsy: Pregabalin is used in the treatment of certain types of epilepsy (partial seizures with or without secondary generalization) in adults. Your doctor will prescribe pregabalin if your current treatment does not adequately control your condition. You should take pregabalin in addition to your current treatment. Pregabalin must not be used as monotherapy, but always in combination with other antiepileptic treatments.

Generalized anxiety disorder: Pregabalin is used to treat generalized anxiety disorder (GAD). Symptoms of GAD include excessive and prolonged anxiety and worry that are difficult to control. GAD may also cause restlessness or a feeling of being keyed up or on edge, becoming easily fatigued (tired), difficulty concentrating or mind going blank, irritability, muscle tension, or sleep disturbance. This is different from the everyday stresses and strains of normal life.

2. What you need to know before taking Premax

Do not take Premax

If you are allergic to pregabalin or to any of the other components of this medicine (listed in section 6).

Warnings and precautions

Talk to your doctor or pharmacist before taking Premax

• Some patients treated with pregabalin have reported symptoms suggesting an allergic reaction. These symptoms include swelling of the face, lips, tongue, and throat, as well as development of widespread skin rash. If you experience any of these symptoms, you must seek medical attention immediately.
• Serious skin rashes, such as Stevens-Johnson syndrome and toxic epidermal necrolysis, have been reported in association with pregabalin treatment. Stop taking pregabalin and seek immediate medical help if you notice any symptoms related to these serious skin reactions described in section 4.
• Dizziness and drowsiness have been associated with pregabalin, which may increase the risk of accidental injuries (falls) in elderly patients. Therefore, you should exercise caution until you become familiar with how this medicine affects you.
• Pregabalin may cause blurred vision, vision loss, or other changes in eyesight, many of which are transient. If you experience any visual disturbances, you should inform your doctor immediately.
• Diabetic patients who gain weight while taking pregabalin may require adjustments in their diabetes medications.
• Certain adverse effects, such as drowsiness, may be more frequent because patients with spinal cord injury may already be taking other medications for conditions such as pain or spasticity (tight or rigid muscles), which have similar side effects to pregabalin, thereby increasing the intensity of these effects when taken together.
• Cases of heart failure have been reported in some patients treated with pregabalin. Most of these patients were elderly with pre-existing cardiovascular diseases.

Before using this medicine, you must inform your doctor if you have a history of heart disease.

• Cases of kidney problems (renal failure) have been reported in some patients treated with pregabalin. If during treatment with pregabalin you notice a decrease in your ability to urinate, inform your doctor, as stopping the treatment may improve this condition.
• Some patients receiving antiepileptic medicines such as pregabalin have had thoughts of harming themselves or of suicide, or have exhibited suicidal behavior. If at any time you experience such thoughts or behaviors, contact your doctor as soon as possible.
• When pregabalin is taken together with other medicines that may cause constipation (such as certain types of pain medications), gastrointestinal problems (e.g., constipation and intestinal blockage or paralysis) may occur. Inform your doctor if you experience constipation, especially if you are prone to this problem.
• Before taking this medicine, inform your doctor if you have ever abused alcohol, prescription medicines, or illegal drugs, or have had dependence on them, as this may mean you are at higher risk of becoming dependent on pregabalin.
• Seizures have been reported during treatment with pregabalin or shortly after discontinuation of pregabalin treatment. If you experience seizures, contact your doctor immediately.
• Cases of reduced brain function (encephalopathy) have been reported in some patients taking pregabalin who also had other medical conditions. Inform your doctor if you have a history of serious illness, including liver or kidney disease.
• Cases of breathing difficulties have been reported. If you have disorders of the nervous system, respiratory disorders, renal failure, or are over 65 years of age, your doctor may prescribe a different dose. Contact your doctor if you experience difficulty breathing or shallow breathing.

Dependence

Some people may become dependent on Premax (a need to keep taking the medicine). They may experience withdrawal symptoms when they stop using Premax (see section 3, “How to take Premax” and “If you stop taking Premax”). If you are concerned about possibly becoming dependent on pregabalin, it is important to consult your doctor.

If you notice any of the following signs while taking Premax, it could be a sign of dependence:

• You feel the need to take the medicine for longer than recommended by your doctor.
• You feel you need to take a higher dose than prescribed.
• You are using the medicine for reasons other than those prescribed.
• You have made repeated unsuccessful attempts to stop or control your use of the medicine.
• When you stop taking the medicine, you feel unwell and feel better again once you take it again.

If you notice any of these signs, speak with your doctor to discuss the best care plan for you, including when it is appropriate to stop treatment and how to do so safely.

Children and adolescents

The safety and efficacy of pregabalin have not been established in children and adolescents (under 18 years of age), so pregabalin should not be used in this age group.

Other medicines and Premax

Inform your doctor or pharmacist if you are taking, have recently taken, or might need to take any other medicines.

Pregabalin and certain medicines may interact with each other. When pregabalin is used together with certain medicines that have a sedative effect (including opioids), these effects may be enhanced, potentially leading to respiratory failure, coma, and death. The degree of dizziness, drowsiness, and reduced concentration may increase if pregabalin is taken together with other medicines containing:

Oxycodone – (used as an analgesic)

Lorazepam – (used to treat anxiety)

Alcohol

This medicine can be taken with oral contraceptives.

Taking Premax with food, drinks, and alcohol

Pregabalin tablets can be taken with or without food.

You are advised not to drink alcohol during treatment with pregabalin.

Pregnancy, breastfeeding, and fertility

You should not take pregabalin during pregnancy or while breastfeeding unless your doctor has specifically instructed you to do so. The use of pregabalin during the first three months of pregnancy may cause congenital malformations in the fetus that require medical treatment. In a study reviewing data from women in Nordic countries who took pregabalin during the first three months of pregnancy, 6 out of every 100 babies had such congenital malformations. This compares with 4 out of every 100 babies born to women not treated with pregabalin in the study. Malformations reported include facial clefts, eyes, nervous system (including the brain), kidneys, and genitals.

Women of childbearing potential should use an effective method of contraception. If you are pregnant, breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor or pharmacist before using this medicine.

Driving and using machines

Pregabalin may cause dizziness, drowsiness, and reduced concentration. Do not drive, operate heavy machinery, or engage in other potentially hazardous activities until you know how this medicine affects your ability to perform these tasks.

3. How to take Premax

Follow exactly the instructions for use of this medicine as given by your doctor.

If in doubt, consult your doctor or pharmacist again. Do not take more medicine than prescribed.

Your doctor will determine the appropriate dose for you.

Pregabalin is for oral use only.

Peripheral and central neuropathic pain, epilepsy, or generalized anxiety disorder:

• Take the number of tablets your doctor has indicated.
  • The dose, adjusted for you and your condition, will generally be between 150 mg and 600 mg daily.
  • Your doctor will instruct you to take pregabalin two or three times a day. If twice daily, take pregabalin once in the morning and once at night, approximately at the same time each day. If three times daily, take pregabalin in the morning, at midday, and at night, approximately at the same time each day.

If you feel that the effect of pregabalin is too strong or too weak, inform your doctor or pharmacist.

If you are an elderly patient (over 65 years of age), you should take pregabalin as usual, unless you have kidney problems.

Your doctor may prescribe a different dosing regimen and/or different doses if you have kidney problems.

Swallow the tablet with water, without crushing or dissolving it.

The tablet may be divided into equal doses.

Continue taking pregabalin until your doctor tells you to stop.

If you take more Premax than you should

In case of overdose or accidental ingestion, contact your doctor or pharmacist immediately or call the Toxicology Information Service at: 91 562 04 20, indicating the medicine and the amount ingested.
As a result of taking more pregabalin than you should, you may feel drowsy, confused, agitated, or restless. Seizures and loss of consciousness (coma) have also been reported.

If you forget to take Premax

It is important that you take pregabalin tablets regularly at the same time each day. If you forget to take a dose, take it as soon as you remember, unless it is almost time for your next dose. In that case, continue with your next dose as normal. Do not take a double dose to make up for a missed dose.

If you stop taking Premax

Do not stop taking Premax suddenly. If you wish to stop taking Premax, speak to your doctor first. He or she will advise you on how to do so. If you are going to stop treatment, it should be done gradually over a minimum of one week.

After completing a short- or long-term treatment with Premax, you should be aware that you may experience certain adverse effects, known as withdrawal effects. These effects include sleep disturbances, headache, nausea, feelings of anxiety, diarrhea, flu-like symptoms, seizures, nervousness, depression, thoughts of self-harm or suicide, pain, sweating, and dizziness. These effects may occur more frequently or severely if you have been taking Premax for a longer period of time. If you experience withdrawal effects, you should contact your doctor.

If you have any further questions about the use of this medicine, ask your doctor or pharmacist.

4. Possible adverse effects

Like all medicines, this medicine can cause adverse effects, although not everyone experiences them.

Very common adverse effects, which may affect more than 1 in 10 people, are:

• Dizziness, somnolence, headache

Common adverse effects, which may affect up to 1 in 10 people, are:

• Increased appetite
• Feeling of euphoria, confusion, disorientation, decreased sexual drive, irritability
• Attention disturbance, clumsiness of movement, memory impairment, memory loss, tremor, difficulty speaking, tingling sensation, numbness, sedation, lethargy, insomnia, fatigue, abnormal sensation
• Blurred vision, double vision
• Dizziness, balance problems, falls
• Dry mouth, constipation, vomiting, flatulence, diarrhea, nausea, bloated abdomen
• Erectile dysfunction
• Swelling of the body including the limbs
• Feeling of drunkenness, disturbances in gait
• Weight gain
• Muscle cramp, joint pain, back pain, limb pain
• Sore throat

Uncommon adverse effects, which may affect up to 1 in 100 people, are:

• Loss of appetite, weight loss, low blood sugar levels, high blood sugar levels
• Altered perception of self, restlessness, depression, agitation, mood changes, difficulty finding words, hallucinations, strange dreams, panic attacks, apathy, aggressiveness, elevated mood, mental deterioration, difficulty thinking, increased sexual appetite, sexual relationship problems including inability to reach climax, delayed ejaculation
• Vision changes, unusual eye movements, visual disturbances including tunnel vision, flashes of light, spasmodic movements, diminished reflexes, hyperactivity, dizziness upon standing, sensitive skin, loss of taste, burning sensation, tremor during movement, decreased consciousness, loss of consciousness, fainting, increased sensitivity to noise, malaise
• Dry eyes, eye swelling, eye pain, tired eyes, watery eyes, eye irritation
• Heart rhythm disturbances, increased heart rate, low blood pressure, high blood pressure, changes in heart rhythm, heart failure
• Flushing, hot flushes
• Breathing difficulty, nasal dryness, nasal congestion
• Increased saliva production, burning, numbness around the mouth
• Sweating, rash, chills, fever
• Muscle spasms, joint swelling, muscle stiffness, pain including muscle pain, neck pain
• Breast pain
• Difficulty or pain when urinating, inability to control urine
• Weakness, thirst, chest tightness
• Changes in blood and liver test results (elevated creatine phosphokinase in blood, elevated alanine aminotransferase, elevated aspartate aminotransferase, decreased platelet count, neutropenia, increased blood creatinine, decreased blood potassium)
• Hypersensitivity, facial swelling, itching, urticaria, runny nose, nosebleeds, cough, snoring
• Painful menstrual periods
• Feeling of coldness in hands and feet

Rare adverse effects, which may affect up to 1 in 1,000 people, are:

• Altered sense of smell, flickering vision, altered depth perception, visual brightness, vision loss
• Dilated pupils, strabismus
• Cold sweat, throat tightness, tongue swelling
• Pancreatic inflammation
• Difficulty swallowing
• Slow or reduced body mobility
• Difficulty writing properly
• Increased fluid in the abdominal area
• Fluid in the lungs
• Seizures
• Changes in the electrocardiogram (ECG) corresponding to heart rhythm disturbances
• Muscle damage
• Milk secretion, abnormal breast growth, breast enlargement in men
• Interruption of menstrual periods
• Kidney failure, reduced urine output, urine retention
• Decreased white blood cell count
• Inappropriate behavior, suicidal behaviors, suicidal thoughts
• Allergic reactions which may include breathing difficulty, eye inflammation (keratitis), and a severe skin reaction characterized by non-elevated reddish patches, or circular or coin-shaped patches on the chest, often with central blisters, skin peeling, mouth ulcers, throat, nose, genital, and eye sores. These severe skin rashes may be preceded by fever and flu-like symptoms (Stevens-Johnson syndrome, toxic epidermal necrolysis)
• Jaundice (yellowing of the skin and eyes)
• Parkinsonism, Parkinson's disease-like symptoms such as tremor, bradykinesia (reduced ability to move), and muscle rigidity

Very rare adverse effects, which may affect up to 1 in 10,000 people, are:

• Liver failure (liver problems)
• Hepatitis (liver inflammation)

Frequency not known: cannot be estimated from the available data

• Becoming dependent on Premax ("drug dependence")

After stopping short- or long-term treatment with Premax, you should be aware that you may experience certain adverse effects known as withdrawal effects (see "If you stop taking Premax").

If you experience swelling of the face or tongue, or if your skin becomes red with blisters or peeling, seek immediate medical attention.

Certain adverse effects, such as somnolence, may be more frequent because patients with spinal cord injury may be taking other medications to treat, for example, pain or spasticity (stiff or rigid muscles), which have similar adverse effects to Pregabalin, so that the intensity of these effects may increase when taken together.

The following adverse reaction has been reported during post-marketing experience: breathing difficulty, shallow breathing.

If you experience any adverse effects, consult your doctor or pharmacist, even if they are effects not listed in this leaflet.

Reporting of adverse effects

If you experience any type of adverse effect, talk to your doctor or pharmacist, even if it is a possible adverse effect not listed in this leaflet. You may also report them directly via the Spanish Pharmacovigilance System for Human Medicines: https://www.notificaram.es .

By reporting adverse effects, you can help provide more information on the safety of this medicine.

5. Storage of Premax

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

Do not use this medicine after the expiry date stated on the packaging after the abbreviation EXP. The expiry date refers to the last day of the month indicated.

No special storage conditions are required.

Medicines must not be disposed of via wastewater or household waste. Return unused medicines and their packaging to the SIGRE Point at your pharmacy. If you are unsure, ask your pharmacist how to dispose of medicines and packaging you no longer need. This will help protect the environment.

6. Contents of the pack and other information

Composition of Premax

The active substance is pregabalin. Each tablet contains 100 mg of pregabalin.

The other components (excipients) are microcrystalline cellulose and magnesium stearate.

Appearance of the product and contents of the pack

Round, biconvex white tablet, marked with “M2” on one side and a double score line on the other.

The tablet can be divided into equal doses.

Premax is available in blisters of polyamide/aluminum/polyvinyl chloride (PVC), packed in cardboard boxes containing 56 or 84 tablets.

Only certain pack sizes may be marketed.

Marketing Authorization Holder and Manufacturer
Marketing Authorization Holder

Neuraxpharm Spain, S.L.U.
Avda. Barcelona, 69
08970 Sant Joan Despí
Barcelona - Spain

Manufacturer
Neuraxpharm Pharmaceuticals, S.L.
Avda. Barcelona 69
08970 Sant Joan Despí (Barcelona)
Spain

Date of the most recent revision of this leaflet: March 2026

Detailed and up-to-date information on this medicinal product is available on the website of the Spanish Agency of Medicines and Medical Devices (AEMPS) http://www.aemps.gob.es/