Miosan: see effect time, indications, side effects

Muscle relaxants are a widely used class of medication, considering that it is common in everyday life to present discomfort in the muscles, either due to excessive physical effort or even due to other tensions (such as stress , for example).

So, we have separated some important information regarding a medicine that falls into this therapeutic class, Miosan . Check it out and learn more:


What is Miosan?

Miosan, whose active ingredient is Cyclobenzaprine Hydrochloride, is a remedy classified as a muscle relaxant . Therefore, it can be used to relieve discomfort related to muscle tension ( low back pain , fibromyalgia , torticollis, etc.).

It is a medication for adult use (from 15 years old) and should not be administered to pregnant women and lactating women without proper medical guidance.

The medicine is available in the tablets version (5mg and 10mg) and the box with 30 pills can cost from R $ 23.

In the sequence, you can better understand about the action of Miosan, its possible side effects and more indications as to who should not use this medicine:

What is the medicine Miosan for?

According to the instructions on the package insert, the drug Miosan can be prescribed for the treatment of muscle spasms (involuntary contractions of the muscles), especially when associated with acute and painful musculoskeletal conditions, such as:

  • Backache;
  • Torticollis;
  • Scapulameral periarthritis (disorder that affects the shoulder);
  • Cervicobraquialgias (pain that radiates from the neck to the arms);
  • Fibromyalgia.

The package insert also reinforces that the medication can be prescribed to act as a complement to other common treatments (such as physiotherapy) in cases of conditions such as those mentioned.

Is it muscle relaxant?

-Yeah . The Miosan remedy is regulated by Anvisa (National Health Surveillance Agency) under registration nº101180129 and falls within the therapeutic class of muscle relaxants.

Therefore, it can be used to relieve pain and tension in the body’s muscles.

What is the active principle of Miosan?

The active ingredient in Miosan is Cyclobenzaprine Hydrochloride , a drug substance that acts as a muscle relaxant in the body.

This compound suppresses skeletal muscle spasm of local origin, but without interfering with the muscular function of the affected area (it does not cause changes in muscle function). Thus, it provides relief from acute pain or discomfort (such as low back pain and torticollis, for example).

However, the label for this active substance reinforces that Cyclobenzaprine Hydrochloride is ineffective in muscle spasms due to diseases of the central nervous system .

How to take Miosan?

Miosan is a medication available in the presentation of pills (5mg or 10mg), according to the package leaflet, the usual dose is 20mg to 40mg per day for adults.

This dose can be divided into 2 to 4 administrations throughout the day. Thus, the medical indication is usually: 4 doses of 5mg per day or 4 doses of 10mg per day ( 1 every 6 hours ).

However, in some cases, the administration of 1 dose every 12 hours may also be prescribed.

Therefore, it is necessary to rely on the guidance of a professional, in order to follow the appropriate use according to your condition and ensure a safe and effective treatment.

In addition, it is worth mentioning that the maximum daily dose of Miosan is 60mg and that, in all cases, the tablets should be taken with water and without chewing.

The medicine Miosan should be administered with water, without chewing.

When does Miosan take effect?

The Miosan package insert indicates that, in general, the action of the drug occurs approximately 1 hour after its administration . Thus, it can occur either a little before or a little after that period, varying according to each organism.

What are the side effects of Miosan?

As with other medications, Miosan can cause side effects to those who use it. However, it is necessary to make it clear that this is not a rule and the normal thing is that the person does not manifest any discomfort.

Among the very common adverse reactions (occurring in more than 10% of patients), the package insert lists the following conditions: drowsiness, dizziness and dry mouth .

There are also common reactions (occur between 1% and 10% of patients), being:

  • Central nervous system disorders – fatigue, headache, confusion, decreased mental acuity (capacity), irritability and nervousness;
  • Gastrointestinal disorders – abdominal discomfort, abdominal pain, reflux, constipation, diarrhea, nausea and unpleasant taste in the mouth;
  • Skeletal and neuromuscular disorders – asthenia (loss or decrease in physical strength);
  • Ophthalmological disorders – blurred vision;
  • Respiratory disorders – pharyngitis and upper airway infections.

If you experience these symptoms (or other unusual), the ideal is to stop using the medication and seek medical help to find out if the problem is (or not) related to the use of Miosan.

Who can not take Miosan?

According to the package leaflet, Miosan should not be administered to people who:

  • Have an allergy to cyclobenzaprine or any other component of the formula;
  • They have glaucoma;
  • Suffer from urinary retention;
  • Are in the post-myocardial infarction period;
  • Are using monoamine oxidase inhibiting drugs;
  • They stopped using monoamine oxidase inhibitors less than 14 days ago;
  • They have cardiac arrhythmias, block or cardiac conduction disorders or congestive heart failure;
  • Suffer from hyperthyroidism.

In addition, it is also not recommended for children under 15 and should not be used by pregnant women and nursing mothers without medical clearance .

Price and where to buy

The medicine Miosan can be purchased in pharmacies, both in physical stores and online. It can also be purchased on online platforms such as Consulta Remédios , which allows you to compare the value of the same item in different establishments in your region.

As for the price * of Miosan, it varies according to the milligram of the medicine:

  • Miosan 10mg (box of 30 pills) – from R $ 27 to R $ 53;
  • Miosan 5mg (box of 30 pills) – from R $ 23 to R $ 45.

* Prices consulted in February 2021. Prices may change.