Skip to main content

Oxcarbazepine tablets for seizure control – let's talk about this in detail!

Oxcarbazepine tablets for seizure control – let's talk about this in detail!

Sometimes we suddenly have a fit, which is a condition called seizures . Oxcarbazepine is a medicine that is given to people with epilepsy to control it. Simply put, this medicine works by calming the nerves in our body that are firing too fast. This helps to stop and control the fit .

What are the things you need to tell your doctor before starting this medication?

Before you start taking Oxcarbazepine, it is important to tell your doctor or the pharmacist about these things. This is because some people may not be suitable for this medicine, or there are cases where you need to be especially careful.

  • If you are of Asian descent: Some studies have shown that Asians are more likely to experience some side effects from this medication, especially severe skin reactions. So it is very important to tell your doctor about this.
  • If you have kidney disease : Our kidneys are the ones that filter most medications out of the body. So if there is a problem with the kidneys, your doctor may need to change the dosage of your medication or consider something else.
  • If you have liver disease : If you have any weakness or disease in your liver, you must also mention that.
  • If you or someone in your family has had suicidal thoughts, has planned something like this, or has attempted something like this: This medicine can sometimes affect a person's mood, so it is very important to inform your doctor if you have this kind of history.
  • If you have had an allergic reaction to Oxcarbazepine, or to the drug Carbamazepine, or to any other medicine, food, artificial dyes, or preservatives: Be sure to tell your doctor if you have had any previous allergies, even to a small thing.
  • If you are pregnant or trying to get pregnant: Not all medications are safe during pregnancy. Some medications can affect the baby. So it's important to talk openly with your doctor about this.
  • If you are a breastfeeding mother (Breast-feeding): Some medications can pass to your baby through breast milk. Therefore, if you are breastfeeding, it is essential to seek medical advice about this as well.

How exactly do I use this medicine?

This is usually available as a tablet. Keep these things in mind when using it:

  • Take with a glass of water: Use a glass of water to help swallow the pill.
  • Take your medicine exactly as your doctor tells you: Take your medicine exactly as your doctor tells you on the prescription label, at the time and in the amount he tells you. Don't skip doses or increase or decrease the dose.
  • Can be taken with or without food: There is no problem taking this medicine before, after, or without food. However, it is best if you get into the habit of taking it the same way every day.
  • Take the prescribed amount at the prescribed time: Your doctor will tell you how many times a day and how much to take at a time. Take it that way.
  • Don't stop suddenly: Even if you feel better now, don't stop taking this medicine suddenly without your doctor's advice. Doing so can increase your risk of seizures. If you do stop, do so gradually, as your doctor tells you to.
  • Special Instructions (`MedGuide`): You will receive a special instructions leaflet (`MedGuide`) every time you get this medicine from the pharmacy, whether it is a new prescription or a refill. Always read it carefully. It contains important information and warnings that you need to know.
  • If given to children: Doctors recommend this medicine for children as young as 2 years old for some special conditions. However, you should talk to your doctor about it carefully and follow his/her instructions. There are special precautions to be taken when giving it to children, as the dosage may vary.
  • What to do if you take too much (overdose): If you think you have taken too much medication, or if someone in your household, especially a small child, has accidentally taken too much of this medication, call a poison control center immediately, or go to the nearest hospital emergency room. It is important to act quickly and not panic in such a situation.

This is something you should definitely remember: This medicine has been prescribed for you by your doctor. Do not share your medicine with others, even if they have the same symptoms as you. Different medicines work for different people.

What to do if you miss your medication appointment?

Oh, there are times like these, right? Sometimes, you may forget to take your medicine because of work. If you miss a dose, take it as soon as you remember. However, if it is almost time for your next dose when you remember (i.e., if it is due in a few hours), skip the missed dose and take the next dose at the scheduled time. Never take a double dose to make up for a missed dose. Doing so can increase the risk of taking too much medicine and causing side effects.

What other things can interact with this medicine?

This is very important. If you are taking other medications, vitamins, herbs, non-prescription drugs, or dietary supplements while taking Oxcarbazepine, you should tell your doctor about all of them. Some things can interact with this medicine. This means that taking them together may change how the medicine works or increase the side effects.

It is advised not to take these with this medicine:

  • A medicine called `Carbamazepine` (this is also a medicine given for fits).

These medications may also interact with Oxcarbazepine. Therefore, if you are taking these, you should tell your doctor:

  • Some other medications that are given for fits include phenobarbital, phenytoin, and valproic acid.
  • Some medications used to treat high blood pressure, such as felodipine, diltiazem, and verapamil.
  • A medicine called cyclosporine (this is usually given to control the body's immune system after things like organ transplants).
  • Hormones called estrogen or progestin (these are usually found in birth control pills or hormone therapy).

This list is not all of the interactions. There may be more. Therefore, it is very important for your own safety to tell your doctor about all the medications you take, including vitamins, herbal remedies, and nutritional supplements, as well as if you smoke, drink alcohol, or use other illegal drugs. Some things can significantly affect how this medicine works.

What should I be especially careful about when taking this medicine?

When you are using this medicine, you need to pay special attention to some things, because sometimes problems can arise that we don't understand.

  • See your doctor regularly: Check in with your doctor regularly to see how you are doing, whether the medication is working properly, and whether there are any side effects. Be sure to go for regular checkups when he or she tells you to.
  • Don't stop suddenly: I've said it before, but I'll say it again. Don't stop taking this medication suddenly without your doctor's advice. Doing so can not only increase your risk of seizures, but it can also make the seizure more severe.
  • Wear something to know in case of an emergency: If you can, wear a `Medic Alert` bracelet or necklace. Or, always keep an identification card in your purse or nearby that lists your medical condition, the medications you take, and your doctor's details. In an emergency, this can be a great way for others to help you if you can't communicate.

Be very careful about serious skin reactions!

This is something to be very careful about. Oxcarbazepine can sometimes cause very serious skin reactions. These can occur weeks or months after starting the medication.

If you have a rash with flu-like symptoms along with a fever, don't assume it's normal. Tell your doctor right away. These rashes may turn red or purple, then turn into blisters and the skin may start to peel. Or, you may have a red rash with swelling of the face or lips, or swollen lymph nodes in the neck or armpits.

Rarely, this medicine may cause a serious, life-threatening skin reaction (such as Stevens-Johnson syndrome or Toxic Epidermal Necrolysis). If you develop skin rash, redness, itching, peeling skin inside your mouth, swollen glands, or fever while taking this medicine, call your doctor immediately. Do not take this lightly.

Other important things

  • Drowsiness or dizziness: This medicine may make you feel drowsy, dizzy, and sometimes unsteady when you walk. Therefore, do not drive, work at heights, operate machinery, or do anything else that requires alertness until you know how this medicine affects you. Especially if you are elderly, do not get up from bed, a chair, or a sitting position suddenly. Do this slowly. This will reduce the risk of dizziness and falling.
  • Avoid alcohol: If you drink alcohol, the drowsiness and dizziness caused by this medication may be increased. Therefore, it is best to avoid alcohol completely while taking this medication.
  • Be careful about contraception: This is especially important for women. If you are taking birth control pills that contain estrogen and/or progestin, oxcarbazepine may make them less effective. This means that the pills may not work as well to prevent pregnancy. Therefore, if you are taking this medication for birth control, talk to your doctor about a second type of contraception. Using a barrier contraceptive, such as a condom or diaphragm, is usually recommended.
  • Watch out for suicidal thoughts: This may sound scary, but it's important to know. Some epilepsy medications, such as these, may increase the risk of suicidal thoughts or actions in a small number of people. So, if you have a big change in your mood, feel more sad, angry, hopeless, have suicidal thoughts, feel like you want to die, or if your family members notice any unusual changes in your behavior, tell your doctor right away. This is also very important.
  • If you become pregnant: If you become pregnant while taking this medicine, you can join the North American Antiepileptic Drug Pregnancy Registry. The number to call is 1-888-233-2334. This registry collects information about the safety of antiepileptic drugs during pregnancy and the possible effects on the baby.

What are the possible side effects of this medicine?

Like any medicine, Oxcarbazepine can cause side effects in some people. Not everyone gets them, but it's good to be aware of the possible ones so that if something does happen, you can deal with it without panicking.

Serious side effects that you should tell your doctor immediately include:

If you experience any of these symptoms, do not delay and call your doctor immediately, or go to the nearest hospital.

  • Allergic reactions: Skin rash, unbearable itching, hives, swelling of the face, lips, tongue, or throat, and difficulty breathing.
  • Symptoms of infection: fever, chills, persistent cough or sore throat, body aches.
  • Symptoms of low sodium levels in the blood: Muscle weakness, fatigue, dizziness, severe headache, confusion, memory loss, vomiting, and possibly a fit.
  • Skin rash, fever, and swollen lymph nodes (this has been mentioned before, but it's worth mentioning again because it can be a symptom of a more serious condition like DRESS syndrome).
  • Redness, blistering, peeling, or loosening of the skin, including inside the mouth (and sometimes the eyes, nose, and genital area).
  • Seizures: Although this medication is used to control seizures, it can sometimes cause a change in seizures as a side effect.
  • Thoughts of suicide or harming yourself, worsening mood, or feelings of depression.

Side effects that are usually not serious, but should be reported to your doctor if they persist or become bothersome:

These usually subside after a few days as your body adjusts to the medication. However, if they persist, or if they are bothersome enough to prevent you from performing your daily activities, tell your doctor.

  • Difficulty with paying attention, memory, or speech.
  • Dizziness.
  • Drowsiness.
  • Double vision or blurred vision.
  • Headache.
  • Loss of balance or coordination - feeling like you can't walk.
  • Nausea or vomiting.
  • Slow or sluggish movements of the body.

This list is not all possible side effects. If you notice anything unusual or unusual, talk to your doctor. You can also report side effects to the FDA (Food and Drug Administration) by calling 1-800-FDA-1088.

How do you store this medicine?

Storing medicines properly is very important to maintain their quality and prevent accidents.

  • Keep out of reach of children and pets: Keep this medicine out of reach of small children and pets like dogs and cats. Store it in a safe place, such as a cupboard, as it can be toxic to them.
  • Store at room temperature: It is best to store this medicine at room temperature (between 15 and 30 degrees Celsius, or 59 and 86 degrees Fahrenheit). Do not store it in places that are too hot (e.g., near a stove, on a sunny windowsill) or too cold (e.g., in the refrigerator). It is also not good to store it in places that are too humid, such as the bathroom.
  • Keep the bottle/packet tightly closed: Keep the bottle or packet of medicine tightly closed after use. This will protect it from moisture and light.
  • Throw away expired medicine: Every medicine has an expiration date. Do not use medicine that has passed that date. Its effectiveness may decrease and may even be harmful. Dispose of expired medicine properly (out of reach of children).

Please note: This article only provides a summary of Oxcarbazepine. It may not be comprehensive. If you have any questions or concerns about this medicine, please ask your doctor, pharmacist, or other healthcare provider.

So, what are the things to remember? (Take-Home Message)

Okay, let's go over the most important things about the drug Oxcarbazepine that we talked about once again, shall we? It will be very useful for you to keep this in mind.

  • This is mainly a medicine given to people with seizures, that is, epilepsy, to control the condition.
  • Take the prescribed dose exactly as the doctor tells you, at the prescribed time. Do not reduce, increase, or stop the dose for any reason without consulting your doctor.
  • Be sure to tell your doctor about any other medications you are taking (over-the-counter, traditional, vitamins), and any other medical conditions you have (especially kidney disease, liver disease, allergies).
  • Be very aware of the signs of severe skin reactions (fever, rash, blisters, peeling skin), suicidal thoughts, and other serious side effects. If you experience any of these, tell your doctor immediately.
  • This medication may cause drowsiness and dizziness, so be careful when driving or doing other activities that require alertness. Do not drink alcohol.
  • If you are a woman taking birth control pills, this medicine may make them less effective. So talk to your doctor about using another form of birth control.
  • Always store medicines in a safe place out of the reach of children and pets. Do not use expired medicines.

If you have any questions or concerns, don't be afraid to ask your doctor. You are the one who should know best about your health, and you should be responsible for it. May we all be healthy and happy!


` Oxcarbazepine, oxcarbazepine, fit, seizure, epilepsy, side effects, medication

⚠️ Important: The medical articles and information on Nirogi Lanka are for general awareness only, and are by no means a substitute for professional medical advice, diagnosis, or treatment. For any medical problem you have, consult a qualified physician immediately.

💬 Comments (0)

No comments yet. Be the first to share your thoughts here.

Add Your Comment

Please calculate: 7 + 6 =
Oxcarbazepine tablets for seizure control – let's talk about this in detail!
MedicationsFebruary 21, 2026

Oxcarbazepine tablets for seizure control – let's talk about this in detail!

Sometimes we suddenly have a fit, which is a condition called seizures . Oxcarbazepine is a medicine that is given to people with epilepsy to control it. Simply put, this medicine works by calming the nerves in our body that are firing too fast. This helps to stop and control the fit .

What are the things you need to tell your doctor before starting this medication?

Before you start taking Oxcarbazepine, it is important to tell your doctor or the pharmacist about these things. This is because some people may not be suitable for this medicine, or there are cases where you need to be especially careful.

  • If you are of Asian descent: Some studies have shown that Asians are more likely to experience some side effects from this medication, especially severe skin reactions. So it is very important to tell your doctor about this.
  • If you have kidney disease : Our kidneys are the ones that filter most medications out of the body. So if there is a problem with the kidneys, your doctor may need to change the dosage of your medication or consider something else.
  • If you have liver disease : If you have any weakness or disease in your liver, you must also mention that.
  • If you or someone in your family has had suicidal thoughts, has planned something like this, or has attempted something like this: This medicine can sometimes affect a person's mood, so it is very important to inform your doctor if you have this kind of history.
  • If you have had an allergic reaction to Oxcarbazepine, or to the drug Carbamazepine, or to any other medicine, food, artificial dyes, or preservatives: Be sure to tell your doctor if you have had any previous allergies, even to a small thing.
  • If you are pregnant or trying to get pregnant: Not all medications are safe during pregnancy. Some medications can affect the baby. So it's important to talk openly with your doctor about this.
  • If you are a breastfeeding mother (Breast-feeding): Some medications can pass to your baby through breast milk. Therefore, if you are breastfeeding, it is essential to seek medical advice about this as well.

How exactly do I use this medicine?

This is usually available as a tablet. Keep these things in mind when using it:

  • Take with a glass of water: Use a glass of water to help swallow the pill.
  • Take your medicine exactly as your doctor tells you: Take your medicine exactly as your doctor tells you on the prescription label, at the time and in the amount he tells you. Don't skip doses or increase or decrease the dose.
  • Can be taken with or without food: There is no problem taking this medicine before, after, or without food. However, it is best if you get into the habit of taking it the same way every day.
  • Take the prescribed amount at the prescribed time: Your doctor will tell you how many times a day and how much to take at a time. Take it that way.
  • Don't stop suddenly: Even if you feel better now, don't stop taking this medicine suddenly without your doctor's advice. Doing so can increase your risk of seizures. If you do stop, do so gradually, as your doctor tells you to.
  • Special Instructions (`MedGuide`): You will receive a special instructions leaflet (`MedGuide`) every time you get this medicine from the pharmacy, whether it is a new prescription or a refill. Always read it carefully. It contains important information and warnings that you need to know.
  • If given to children: Doctors recommend this medicine for children as young as 2 years old for some special conditions. However, you should talk to your doctor about it carefully and follow his/her instructions. There are special precautions to be taken when giving it to children, as the dosage may vary.
  • What to do if you take too much (overdose): If you think you have taken too much medication, or if someone in your household, especially a small child, has accidentally taken too much of this medication, call a poison control center immediately, or go to the nearest hospital emergency room. It is important to act quickly and not panic in such a situation.

This is something you should definitely remember: This medicine has been prescribed for you by your doctor. Do not share your medicine with others, even if they have the same symptoms as you. Different medicines work for different people.

What to do if you miss your medication appointment?

Oh, there are times like these, right? Sometimes, you may forget to take your medicine because of work. If you miss a dose, take it as soon as you remember. However, if it is almost time for your next dose when you remember (i.e., if it is due in a few hours), skip the missed dose and take the next dose at the scheduled time. Never take a double dose to make up for a missed dose. Doing so can increase the risk of taking too much medicine and causing side effects.

What other things can interact with this medicine?

This is very important. If you are taking other medications, vitamins, herbs, non-prescription drugs, or dietary supplements while taking Oxcarbazepine, you should tell your doctor about all of them. Some things can interact with this medicine. This means that taking them together may change how the medicine works or increase the side effects.

It is advised not to take these with this medicine:

  • A medicine called `Carbamazepine` (this is also a medicine given for fits).

These medications may also interact with Oxcarbazepine. Therefore, if you are taking these, you should tell your doctor:

  • Some other medications that are given for fits include phenobarbital, phenytoin, and valproic acid.
  • Some medications used to treat high blood pressure, such as felodipine, diltiazem, and verapamil.
  • A medicine called cyclosporine (this is usually given to control the body's immune system after things like organ transplants).
  • Hormones called estrogen or progestin (these are usually found in birth control pills or hormone therapy).

This list is not all of the interactions. There may be more. Therefore, it is very important for your own safety to tell your doctor about all the medications you take, including vitamins, herbal remedies, and nutritional supplements, as well as if you smoke, drink alcohol, or use other illegal drugs. Some things can significantly affect how this medicine works.

What should I be especially careful about when taking this medicine?

When you are using this medicine, you need to pay special attention to some things, because sometimes problems can arise that we don't understand.

  • See your doctor regularly: Check in with your doctor regularly to see how you are doing, whether the medication is working properly, and whether there are any side effects. Be sure to go for regular checkups when he or she tells you to.
  • Don't stop suddenly: I've said it before, but I'll say it again. Don't stop taking this medication suddenly without your doctor's advice. Doing so can not only increase your risk of seizures, but it can also make the seizure more severe.
  • Wear something to know in case of an emergency: If you can, wear a `Medic Alert` bracelet or necklace. Or, always keep an identification card in your purse or nearby that lists your medical condition, the medications you take, and your doctor's details. In an emergency, this can be a great way for others to help you if you can't communicate.

Be very careful about serious skin reactions!

This is something to be very careful about. Oxcarbazepine can sometimes cause very serious skin reactions. These can occur weeks or months after starting the medication.

If you have a rash with flu-like symptoms along with a fever, don't assume it's normal. Tell your doctor right away. These rashes may turn red or purple, then turn into blisters and the skin may start to peel. Or, you may have a red rash with swelling of the face or lips, or swollen lymph nodes in the neck or armpits.

Rarely, this medicine may cause a serious, life-threatening skin reaction (such as Stevens-Johnson syndrome or Toxic Epidermal Necrolysis). If you develop skin rash, redness, itching, peeling skin inside your mouth, swollen glands, or fever while taking this medicine, call your doctor immediately. Do not take this lightly.

Other important things

  • Drowsiness or dizziness: This medicine may make you feel drowsy, dizzy, and sometimes unsteady when you walk. Therefore, do not drive, work at heights, operate machinery, or do anything else that requires alertness until you know how this medicine affects you. Especially if you are elderly, do not get up from bed, a chair, or a sitting position suddenly. Do this slowly. This will reduce the risk of dizziness and falling.
  • Avoid alcohol: If you drink alcohol, the drowsiness and dizziness caused by this medication may be increased. Therefore, it is best to avoid alcohol completely while taking this medication.
  • Be careful about contraception: This is especially important for women. If you are taking birth control pills that contain estrogen and/or progestin, oxcarbazepine may make them less effective. This means that the pills may not work as well to prevent pregnancy. Therefore, if you are taking this medication for birth control, talk to your doctor about a second type of contraception. Using a barrier contraceptive, such as a condom or diaphragm, is usually recommended.
  • Watch out for suicidal thoughts: This may sound scary, but it's important to know. Some epilepsy medications, such as these, may increase the risk of suicidal thoughts or actions in a small number of people. So, if you have a big change in your mood, feel more sad, angry, hopeless, have suicidal thoughts, feel like you want to die, or if your family members notice any unusual changes in your behavior, tell your doctor right away. This is also very important.
  • If you become pregnant: If you become pregnant while taking this medicine, you can join the North American Antiepileptic Drug Pregnancy Registry. The number to call is 1-888-233-2334. This registry collects information about the safety of antiepileptic drugs during pregnancy and the possible effects on the baby.

What are the possible side effects of this medicine?

Like any medicine, Oxcarbazepine can cause side effects in some people. Not everyone gets them, but it's good to be aware of the possible ones so that if something does happen, you can deal with it without panicking.

Serious side effects that you should tell your doctor immediately include:

If you experience any of these symptoms, do not delay and call your doctor immediately, or go to the nearest hospital.

  • Allergic reactions: Skin rash, unbearable itching, hives, swelling of the face, lips, tongue, or throat, and difficulty breathing.
  • Symptoms of infection: fever, chills, persistent cough or sore throat, body aches.
  • Symptoms of low sodium levels in the blood: Muscle weakness, fatigue, dizziness, severe headache, confusion, memory loss, vomiting, and possibly a fit.
  • Skin rash, fever, and swollen lymph nodes (this has been mentioned before, but it's worth mentioning again because it can be a symptom of a more serious condition like DRESS syndrome).
  • Redness, blistering, peeling, or loosening of the skin, including inside the mouth (and sometimes the eyes, nose, and genital area).
  • Seizures: Although this medication is used to control seizures, it can sometimes cause a change in seizures as a side effect.
  • Thoughts of suicide or harming yourself, worsening mood, or feelings of depression.

Side effects that are usually not serious, but should be reported to your doctor if they persist or become bothersome:

These usually subside after a few days as your body adjusts to the medication. However, if they persist, or if they are bothersome enough to prevent you from performing your daily activities, tell your doctor.

  • Difficulty with paying attention, memory, or speech.
  • Dizziness.
  • Drowsiness.
  • Double vision or blurred vision.
  • Headache.
  • Loss of balance or coordination - feeling like you can't walk.
  • Nausea or vomiting.
  • Slow or sluggish movements of the body.

This list is not all possible side effects. If you notice anything unusual or unusual, talk to your doctor. You can also report side effects to the FDA (Food and Drug Administration) by calling 1-800-FDA-1088.

How do you store this medicine?

Storing medicines properly is very important to maintain their quality and prevent accidents.

  • Keep out of reach of children and pets: Keep this medicine out of reach of small children and pets like dogs and cats. Store it in a safe place, such as a cupboard, as it can be toxic to them.
  • Store at room temperature: It is best to store this medicine at room temperature (between 15 and 30 degrees Celsius, or 59 and 86 degrees Fahrenheit). Do not store it in places that are too hot (e.g., near a stove, on a sunny windowsill) or too cold (e.g., in the refrigerator). It is also not good to store it in places that are too humid, such as the bathroom.
  • Keep the bottle/packet tightly closed: Keep the bottle or packet of medicine tightly closed after use. This will protect it from moisture and light.
  • Throw away expired medicine: Every medicine has an expiration date. Do not use medicine that has passed that date. Its effectiveness may decrease and may even be harmful. Dispose of expired medicine properly (out of reach of children).

Please note: This article only provides a summary of Oxcarbazepine. It may not be comprehensive. If you have any questions or concerns about this medicine, please ask your doctor, pharmacist, or other healthcare provider.

So, what are the things to remember? (Take-Home Message)

Okay, let's go over the most important things about the drug Oxcarbazepine that we talked about once again, shall we? It will be very useful for you to keep this in mind.

  • This is mainly a medicine given to people with seizures, that is, epilepsy, to control the condition.
  • Take the prescribed dose exactly as the doctor tells you, at the prescribed time. Do not reduce, increase, or stop the dose for any reason without consulting your doctor.
  • Be sure to tell your doctor about any other medications you are taking (over-the-counter, traditional, vitamins), and any other medical conditions you have (especially kidney disease, liver disease, allergies).
  • Be very aware of the signs of severe skin reactions (fever, rash, blisters, peeling skin), suicidal thoughts, and other serious side effects. If you experience any of these, tell your doctor immediately.
  • This medication may cause drowsiness and dizziness, so be careful when driving or doing other activities that require alertness. Do not drink alcohol.
  • If you are a woman taking birth control pills, this medicine may make them less effective. So talk to your doctor about using another form of birth control.
  • Always store medicines in a safe place out of the reach of children and pets. Do not use expired medicines.

If you have any questions or concerns, don't be afraid to ask your doctor. You are the one who should know best about your health, and you should be responsible for it. May we all be healthy and happy!


` Oxcarbazepine, oxcarbazepine, fit, seizure, epilepsy, side effects, medication

⚠️ Important: The medical articles and information on Nirogi Lanka are for general awareness only, and are by no means a substitute for professional medical advice, diagnosis, or treatment. For any medical problem you have, consult a qualified physician immediately.

💬 Comments (0)

No comments yet. Be the first to share your thoughts here.

Add Your Comment

Please calculate: 7 + 6 =