Do you sometimes experience sudden, severe muscle spasms and pain? Perhaps this happens after an accident or due to a medical condition related to the nervous system. Tizanidine is a special medicine that doctors prescribe to reduce muscle spasms and the stiffness that occurs as a result. Today, we will talk about this medicine in simple terms, its function, things to be aware of when using it, and its side effects.
What exactly is Tizanidine?
Simply put, Tizanidine is a drug that belongs to the muscle relaxant class of drugs. It is commonly found in our country under the brand name Zanaflex.
Its main function is to relax tight, twitching muscles. That is, to relax them. Rather than directly affecting the muscles, it does this by controlling nerve signals to our brain and spinal cord. This significantly reduces muscle stiffness and pain.
Things you need to tell your doctor before taking this medicine
Before using tizanidine, it is very important to tell your doctor about your medical history, especially if you have any of the following conditions:
- Kidney disease: If you have any kidney-related disease.
- Liver diseases: If you have liver problems.
- Low blood pressure: If you have low blood pressure frequently.
- Mental health issues: If you have a mental illness or are taking medication for it.
- Allergies: If you have an allergy to tizanidine or any other medicine, food, or dye.
- Pregnancy: If you are pregnant or trying to get pregnant.
- If you are a nursing mother: If you are breastfeeding your baby.
Do not hide this information from your doctor, as special care should be taken when using Tizanidine with these conditions.
The correct way to use the medicine
This medicine should be taken by mouth with a glass of water. It is very important to take the prescribed dose, at the prescribed time, and exactly as prescribed by your doctor.
You can take this with or without food. But the most important thing is that if you are used to taking it one way, keep taking it that way. For example, if you take it after meals every day, keep taking it that way. This is because the way your body absorbs the medicine may be slightly different when you take it with or without food.
Very important: Do not stop taking this medication suddenly unless your doctor tells you to. Doing so can cause serious side effects, such as high blood pressure and rapid heartbeat. If you do stop, do so as directed by your doctor, gradually reducing the dose.
Special occasions
- People over 65 years of age: Older people may feel the effects of this medication a little stronger. Therefore, doctors usually start treatment with a lower dose.
- Children: Special medical supervision is required if this medicine is given to children.
What to do if you take too much medicine? (Overdose)
If you think you have taken too much medicine, you should take immediate action . Go to the nearest Emergency Department (ETU) as soon as possible. Or call the National Poisons Information Centre at the Colombo National Hospital for advice.
Drug Interactions of Tizanidine with Other Medications
Tizanidine can interact with many other medications, so it's important to tell your doctor about all the medications you're taking (prescribed by other doctors, over-the-counter medications, vitamins, and herbal remedies).
| Reaction type | Examples |
|---|---|
| Do not take Tizanidine with this medicine. | |
| Antibiotics | Ciprofloxacin |
| Antidepressants | Fluvoxamine |
| Other | Thiabendazole, Viloxazine, some narcotic cough medicines |
| You definitely need to be careful with this medicine. | |
| Alcohol | Alcohol (abstain from drinking alcohol completely) |
| Medicines for blood pressure and heart disease | Medicines like Clonidine, Guanfacine, Methyldopa, Amiodarone, Verapamil |
| Medications for sleep, anxiety, and depression | Medications like Amitriptyline, Fluoxetine |
| Birth control pills | Birth control pills |
| Other | Acyclovir, Cimetidine, Famotidine, painkillers, allergy medications |
Things to be careful about when taking medicine
- Drowsiness and dizziness: You may feel very drowsy and dizzy while taking this medication. Therefore , do not do anything that requires your full attention, such as driving, working at heights, or operating machinery, until you know exactly how this medication affects you.
- Don't get up suddenly: Don't get up suddenly, whether from sitting or lying down. Doing so can cause dizziness and you may fall. Be especially careful if you are elderly.
- Alcohol: This medicine does not work at all with alcohol. Alcohol can greatly increase the side effects of the medicine (especially drowsiness). Therefore, avoid drinking alcohol completely during treatment.
- Dry mouth: Dry mouth is a common side effect of this medication. Chewing sugar-free gum, sucking on sugar-free candy, and drinking small amounts of water throughout the day can help. If the problem persists, talk to your doctor.
Possible side effects
Like any medicine, Tizanidine can cause side effects. Some are serious, while others are common.
| Side effect | Description |
|---|---|
| Side effects that should be reported to your doctor immediately | |
| Allergic reactions | Skin rash, itching, swelling of the face, lips, tongue or throat. |
| Liver injury | Pain in the upper right side of the stomach, loss of appetite, nausea, yellowing of the skin or eyes, dark yellow/brown urine. |
| Excessive drowsiness/drowsiness (CNS depression) | Slow or shallow breathing, difficulty waking up, and extreme dizziness. |
| Hallucinations | Seeing or hearing things that are not really there. |
| Low blood pressure | Dizziness, blurred vision, feeling like you might fall when standing. |
| Side effects that are usually not serious, but should be reported to the doctor if they persist | |
| Drowsiness | Drowsiness |
| Dry mouth | Dry mouth |
| Dizziness | Dizziness |
| Constipation | Constipation |
| Tiredness | Fatigue |
Take-Home Message
- Tizanidine is a medicine that relaxes muscles, reducing their stiffness and pain.
- Before starting this medication, be sure to tell your doctor about all your medical conditions and all other medications you are taking.
- You may feel drowsy and dizzy while taking this medicine, so be very careful when doing tasks that require concentration (especially driving). Avoid drinking alcohol completely.
- Avoid stopping this medication suddenly without medical advice. Doing so may cause serious side effects.
- Seek immediate medical attention if you experience any serious side effects such as skin rash, difficulty breathing, or yellowing of the eyes or skin.
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