Without a Prescription

The main clinical ingredient of Clemastine is a common clinical remedy based on Acetaminophen; pharmacists from all over the world consider this medication one of the most effective fever reducing and pain relievers on the market. Another component that can be found in a dose of Clemastine is Clemastine; this medical remedy is an effective antihistamine that is able to reduce the patient's levels of histamine - this substance is the one responsible for unpleasant clinical manifestations such as runny nose, watery eyes, itching, sneezing, etc.
Another important medical component of Clemastine is Pseudoephedrine, a popular decongestant that is able to effectively shrink the patient's nasal passages blood vessels - the dilation of these blood vessels is known to lead to the developing of a stuffy nose (nasal congestion).
As we have mentioned in the previous chapter, Clemastine is actually a pharmaceutical combination between several effective drugs: Clemastine, Acetaminophen, and Pseudoephedrine. This combination of medical products makes the use of Clemastine highly effective against certain unpleasant clinical manifestations such as stuffy / runny nose, sneezing, sinus congestion, fever or pain (all of these symptoms can be triggered by the presence of common cold or by that of an allergic reaction to a certain substance).


It is always especially important to refer to a specialized medical provider before you administer a cold or a cough medical remedy to a baby, as severe consequences (some of them deadly) can occur. Before you employ a dose of Clemastine you should alert your main medical prescriber if you are hyper-sensitive to any of the medical components of this product. Another contra-indication that is linked to the use of this clinical remedy is the presence of certain medical conditions. For example, patients who are suffering form high blood pressure or from heart disease or those who have been diagnosed with liver disease (especially with liver cirrhosis), with kidney disorder or with glaucoma should avoid using Clemastine. In such medical cases, the patient's main medical specialist will have to prescribe the individual an alternative medication that will help him or her deal with their condition in a more adequate way. Furthermore, patients who presented an enlarged prostate or diabetic individuals have not responded well to a therapy course with Clemastine.

Intake Guidelines

In order to make sure that your therapy course with Clemastine can be considered a success you should employ your doses of this clinical remedy according to your PD's instructions. In case your regular use of Clemastine leads to unwanted stomach upset you should try employing your doses of this clinical remedy along with milk or with food. You should always keep in mind that keeping yourself well hydrated during your treatment with this product is very important.


Adult individuals should not employ more than 1000 mg (1 g) of Clemastine at once; the maximum daily dose of this medication for adult patients is of 4 grams of this product. Children and elderly patients should be prescribed lower doses of this product. The amount of Acetaminophen that is included in the average tablet of Clemastine is about 325 mg. Please address your main clinical specialist for further information concerning this topic.


As over-dosage with Clemastine is a highly severe medical condition (it can trigger a set of life-threatening consequences especially in the case of young patients) the presence of such a medical condition should be dealt with in the adequate professional manner as soon as possible. For this reason, a patient who is suspected to suffer from over-exposure to Clemastine should be transported to the nearest medical facility. The symptoms that commonly characterize such a condition include dizziness, stomach pain, dry mouth, drowsiness, tingly feeling, convulsions, vomiting, etc.

Missed Dose

Replacing your missed dose of Clemastine as soon as possible may be the right solution in such a situation. However, in certain cases, the patient should simply skip his or her missed dose of Clemastine. The best way to determine the appropriate course of action in such circumstances is to address your main medical prescriber. You must never use extra doses of Clemastine without his or her direct approval.

Side Effects

All individuals who develop any of these severe adverse manifestations during their therapy course with Clemastine should immediately cease using this medical remedy and alert their prescriber; the symptoms that fit into this category include: uneven, pounding or fast heartbeat, hallucinations, confusion, abnormal behavior, hypertension, weakness, body aches, fever, stomach pain, loss of appetite, jaundice, and so on.
Other less severe adverse manifestations that may arise during your therapy course with Clemastine include: insomnia, dry mouth, blurred vision, concentration problems, excitability, restless, skin rash, etc. Luckily, most of the symptoms that adversely interfere during a patient's therapy with Clemastine tend to fade away in time. However, notifying your PD of any unusual symptoms that may occur is advisable.


The use of other clinical remedies may interfere with the effectiveness of Clemastine; thus, the beneficial results of your therapy may be impaired or delayed. You should avoid combining your therapy course with this product with bronchodilators, antidepressants, gout clinical remedies, blood pressure drugs, Isoniazid, seizure clinical remedies, Aspirin, Levatol, Blocadren, etc.

Other Brand Names

In some countries Clemastine may also be known as:
- Agasten;
- Clamist;
- Contac 12 Hour Allergy;
- Dayhist-1;
- Marsthine;
- Tavegyl;
Without Prescription (2017)