Clemastine
Description
Clemastine is an antihistamine used to relieve the symptoms caused by allergic reactions like hay fever or urticaria. The symptoms may include sneezing, runny nose, itching eyes, etc.
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Side effects
Major & minor side effects for Clemastine
- Dizziness and Drowsiness
- Dry mouth
- Headache
- Nervousness
- Difficulty in passing urine
- Changes in vision
- Rash
- Itching
- Difficulty in breathing
- Nausea
- Excitement
Uses of Clemastine
What is it prescribed for?
- Allergic Rhinitis
- Urticaria
- Angioedema
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Concerns
Commonly asked questions
- Onset of actionThe effect of this medicine can be observed within 15 to 60 minutes of administration of the dose.
- Duration of effectThe effect of this medicine lasts for an average duration of 8 to 12 hours.
- Safe with alcohol?Consumption of alcohol is not recommended during treatment with this medicine due to the increased risk of side effects such as dizziness, drowsiness, and difficulty in concentration. It is advised that you do not perform any activities that require high mental alertness like driving a vehicle or operating machinery if you consume alcohol during treatment with this medicine.
- Is it habit forming?No habit forming tendencies were reported.
- Usage in pregnancy?This medicine is not recommended for use in pregnant women unless necessary. All the risks and benefits should be discussed with the doctor before taking this medicine.
- Usage while breast-feeding?This medicine is not recommended for use in breastfeeding women unless necessary. All the risks and benefits should be discussed with the doctor before taking this medicine.
Allergy
This medicine is not recommended for use in patients with a known allergy to clemastine or any other components present along with it.
Asthma
This medicine is not recommended for use in patients with asthma due to the increased risk of worsening of the patient's condition.
Neonates and premature infants
This medicine is not recommended for use in newborn children and premature infants due to the increased risk of serious side effects.
Monoamine oxidase inhibitors (MAO)
This medicine is not recommended for use in patients taking Monoamine oxidase inhibitors (MAO) such as isocarboxazid, phenelzine, etc. due to the increased risk of serious adverse effects.
Warnings for special population
Pregnancy
This medicine is not recommended for use in pregnant women unless necessary. All the risks and benefits should be discussed with the doctor before taking this medicine.
Breast-feeding
This medicine is not recommended for use in breastfeeding women unless necessary. All the risks and benefits should be discussed with the doctor before taking this medicine.
General warnings
Anticholinergic effects
This medicine should be used with caution in patients with conditions like glaucoma, urinary retention, or urinary obstruction due to the increased risk of anticholinergic effects that can worsen the existing condition. Appropriate dose adjustments or replacement with a suitable alternative may be necessary based on the clinical condition.
Missed Dose
If a dose of Clemastine is missed, take the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose. Do not double the dose to make up for the missed one.
Overdose
Seek emergency medical treatment or contact the doctor in case of an overdose.
All drugs interact differently for person to person. You should check all the possible interactions with your doctor before starting any medicine.
Interaction with Alcohol
Description
N/A
Instructions
Consumption of alcohol is not recommended during treatment with this medicine due to the increased risk of side effects such as dizziness, drowsiness, and difficulty in concentration. It is advised that you do not perform any activities that require high mental alertness like driving a vehicle or operating machinery if you consume alcohol during treatment with this medicine.
Interaction with Medicine
Topiramate
Ipratropium
Sodium oxybate
Disease interactions
Cardiovascular disease
This medicine should be used with caution in patients with a history of cardiovascular diseases due to the increased risk of severe side effects. These side effects may include an increased heart rate, arrhythmias, palpitations, hypotension, ECG changes, hypertension, and tachycardia. Close monitoring of heart function and vital signs is recommended for such patients. Appropriate dose adjustments may be necessary based on the clinical condition.
Renal Diseases
This medicine should be used with caution in patients with renal diseases due to the increased risk of severe adverse effects. Appropriate dose adjustments and close monitoring of kidney function may be required based on the clinical condition.
Liver Disease
This medicine should be used with caution in patients with liver diseases due to the increased risk of severe adverse effects. Appropriate dose adjustments and close monitoring of liver function may be required based on the clinical condition.
Food interactions
Information not available.
Lab interactions
Information not available.
Strictly follow all the instructions on the label and take Clemastine only as directed. Do not take more than the prescribed dose. It is advised that you should inform the doctor about all the medicines or herbal products that you are using and about all your medical conditions before taking this medicine. Use this medicine only for the prescribed purpose. Report any unusual symptoms to the doctor immediately. Do not stop the use of this medicine without consulting your doctor.
Miscelleneous
How it works
Clemastine blocks the action of histamine, a natural substance responsible for allergic reactions.
Legal Status
Classification
Category
Antihistamines
Schedule
N/A
[Internet]. 2017 [cited 30 August 2017]. Available from:
Clemastine - DrugBank [Internet]. Drugbank.ca. 2017 [cited 30 August 2017]. Available from:
Clemastine: MedlinePlus Drug Information [Internet]. Medlineplus.gov. 2017 [cited 30 August 2017]. Available from:
DailyMed - Clemastine Fumarate syrup [Internet]. Dailymed.nlm.nih.gov. 2017 [cited 30 August 2017]. Available from:
DailyMed - Clemastine Fumarate tablet [Internet]. Dailymed.nlm.nih.gov. 2017 [cited 30 August 2017]. Available from:
Toxnet [Internet]. Toxnet.nlm.nih.gov. 2017 [cited 30 August 2017]. Available from:
Information on this page was last updated on 18 Sep 2017
Disclaimer
We’ve made all possible efforts to ensure that the information provided here is accurate, up-to-date and complete, however, it should not be treated as a substitute for professional medical advice, diagnosis or treatment. Practo only provides reference source for common information on medicines and does not guarantee its accuracy or exhaustiveness. The absence of a warning for any drug or combination thereof, should not be assumed to indicate that the drug or combination is safe, effective, or appropriate for any given patient. Practo does not assume any responsibility for any aspect of healthcare administered with the aid of information provided above. If you have any doubts about your medication then we strongly recommend that you consult with your doctor, nurse or healthcare provider. See detailed T&C here.