Klonaza: Uses, Contraindications, Overview, Administration and Side Effects

It is an antispasmodic drug for the symptomatic treatment of pain associated with functional disorders of the gastrointestinal tract and the biliary tract.

Treatment of the spasmodic and painful manifestations of the acute urinary tract can also be used : renal colic, symptomatic treatment of painful spastic manifestations in gynecology and adjunctive contractions during pregnancy in combination with rest.


  • Hypersensitivity to any component.
  • Phenylketonuria due to the presence of aspartame.

Overview of antispasmodics

What are antispasmodics?

Antispasmodics are a group (class) of medications that can help control some symptoms that arise from the intestine (in particular, intestinal spasms).

How do antispasmodics work?

The movement of food throughout your intestine (intestines) occurs because some of the muscles in the intestine tense (contract) and then relax in a regular pattern throughout the entire intestine.

These muscle contractions are triggered by various chemicals produced by your body that adhere to special ‘docking’ sites (receptors) in the muscles.

However, in conditions such as irritable bowel syndrome (IBS), these muscle contractions can occur too often or be painful, causing symptoms such as pain and swelling.

Antimuscarinics work by binding to receptors and in this way preventing chemicals from coupling to make the muscle contract.

Reducing muscle contractions in this way often helps alleviate some of the symptoms caused by IBS (Irritable Bowel Syndrome).

Because muscarinic receptors are also found in other parts of the body, taking an antimuscarinic can have other effects.

For example, muscarinic receptors also help control saliva production in the mouth. Taking a medicine that blocks these receptors can cause dry mouth.

Smooth muscle relaxants work directly on the smooth muscle in the wall of the intestine. Here they help to relax the muscle and relieve pain associated with a bowel contraction.

What conditions do they use to treat?

Antispasmodics with klonaza are commonly used in IBS:

  • To help relieve some of the symptoms of IBS, such as spasms (cramps), bloating, and tummy (abdominal) pain.
  • To reduce the movement (motility) of the intestine (intestines).

Note : not all people with IBS find that antispasmodics work well. However, they are worth a try, as they work well in a good number of cases.

Antispasmodics are also used in some other conditions, such as diverticular disease.

How do I take antispasmodics?

Your doctor will advise you how to take your medicine, including how often. You may be advised to use the drug at a certain time in relation to food. Some people take a dose before meals if the pains tend to develop after eating.

In general, it is recommended that you take these medications only when necessary. For example, people with IBS often find that there are times when symptoms flare up for a time. Therefore, it is common to take an antispasmodic when symptoms appear and stop it if symptoms subside.

Note : the pain can be relieved with medication, but it may not go away completely.

How fast do antispasmodics work?

Antispasmodics generally work within an hour or more to relieve symptoms. Its effectiveness may depend on the dose you are given and how often you take it.

How long is klonaza treatment needed?

In the case of being treated with klonaza they are generally only used when you have active symptoms. However, this can vary depending on the reason for treating it. Your doctor should be able to advise you on this.

Who can’t take antispasmodics?

Most people can take antispasmodics. There are some exceptions. A complete list of people who should not take antispasmodics is included with the information leaflet that comes with the medicine package.

If you are prescribed antispasmodics, please read this to make sure you can safely take it. In particular, antispasmodics may not be suitable for people with:

  • Paralytic ileus : a condition in which the muscles of the intestine are paralyzed.
  • A blocked intestine (intestinal obstruction).
  • Myasthenia gravis – a condition that causes muscle weakness.
  • Pyloric stenosis : narrowing of the stomach outlet.
  • Enlarged prostate.
  • Pregnant or nursing mothers should also seek advice before using these medications.
  • These medications are generally recommended to be avoided if you are pregnant or breastfeeding.

What are the possible side effects?

Most people who take antispasmodics do not have any serious side effects. If side effects do occur, they are generally minor.

In general, the types of smooth muscle relaxant tend to have fewer side effects. Side effects depend on which of the antispasmodic medications you are taking.

Some of the more common side effects are:

Note: the above is not the complete list of the side effects of these medications. See the brochure that comes with your particular brand for a complete list of possible side effects and precautions.