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Clemastine

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Why is this medication prescribed?

Sneezing, runny nose, and red, itchy, and watery eyes are among the symptoms of hay fever and allergies that are relieved by clemastine. Clemastine in prescription strength is also used to reduce hive irritation and swelling. Although it does not address the underlying cause of allergies or colds or hasten recovery time, clemastine aids in the control of their symptoms. The drug clemastine belongs to the antihistamine drug class. It functions by preventing the body’s natural histamine from producing the symptoms of allergies.

How should this medicine be used?

There are oral liquid and pill forms of clemastine. Often, it is taken twice or three times day. Ask your doctor or pharmacist to explain any instructions on your prescription label or package label that you do not understand, and then carefully follow them. Follow the clemastine directions precisely. Never take it in larger or less amounts or more frequently than recommended by your doctor or the label.

Do not measure your dose if you are consuming the drink with a regular spoon. Use the measuring spoon or cup that came with the medication or use a spoon made especially for measuring medication.

Other uses for this medicine

Ask your doctor or pharmacist for more details if you’re interested in using this drug for any other conditions.

What special precautions should I follow?

Before taking clemastine,

  • If you have an allergy to clemastine, any other antihistamine drugs, any other medications, or any of the substances in clemastine tablets or liquid, let your doctor and pharmacist know right away. For a list of the ingredients, consult your physician or pharmacist or look on the label of the container.
  • Inform your physician if you are using monoamine oxidase (MAO) inhibitors including tranylcypromine (Eldepryl, Emsam, Zelapar), isocarboxazid (Marplan), phenelzine (Nardil), and selegiline (Eldepryl) (Parnate). If you take one of these drugs, your doctor might advise against using clemastine.
  • Inform your doctor and pharmacist about any additional prescription and over-the-counter drugs, vitamins, dietary supplements, and herbal products you are now taking or intend to use. Mention any of the following: narcotic painkillers; muscle relaxants; other cold, hay fever, or allergy medications; medications for depression or seizures; sedatives; sleeping pills; and tranquillizers. Your physician might need to adjust the dosage of your drugs or keep a close eye on you for side effects.
  • Inform your doctor if you have or have ever had any of the following conditions: asthma, lung disease, glaucoma (an eye condition where increased pressure can cause progressive vision loss), ulcers, inability to urinate due to an enlarged prostate gland, blockage between the stomach and intestines, blockage in the bladder, heart disease, high blood pressure, seizures, or an overactive thyroid gland.
  • Inform your doctor if you are expecting, intend to get pregnant, or are nursing a baby. Call your doctor if you become pregnant while taking clemastine.
  • You should let your doctor or dentist know that you are taking clemastine if you are having surgery, including dental surgery.
  • You should be aware that this medicine may cause you to feel sleepy. Prior to understanding how this drug affects you, avoid using machinery or driving a car.
  • See your doctor about drinking responsibly while taking clemastine. The negative effects of this drug can be made worse by alcohol.
  • If you are 65 years of age or older, discuss the advantages and disadvantages of taking clemastine with your doctor. Since clemastine is less safe and less successful than alternative drugs that can be used to treat the same illness, older persons should often avoid taking it.

What special dietary instructions should I follow?

Keep eating normally unless your doctor instructs you otherwise.

What should I do if I forget a dose?

Typically, this drug is given as needed. Take the missed dose of clemastine as soon as you remember it if your doctor has prescribed it for you on a regular basis. If the next dose is soon due, skip the missed one and carry on with your regular dosing plan. To make up for a missing dose, do not take a second one.

What side effects can this medication cause?

Side effects from clemastine could exist. If any of these symptoms are severe or do not go away, let your doctor know right once:

  • Drowsiness
  • Throat, nose, and mouth are dry
  • Dizziness
  • Lower coordination
  • Nausea
  • Chest discomfort
  • Headache
  • Enthusiasm (particularly with children) (especially in children)
  • Nervousness

Some adverse effects may be severe. Make a quick call to your doctor if you encounter any of the following signs:

  • Having trouble urinating
  • Alterations to vision
  • Hammering, rapid, or erratic heartbeat
  • Hives
  • Rash
  • Itching
  • Breathing or swallowing challenges

Further negative effects of clemastine could exist. If you encounter any odd issues while taking this medicine, contact your doctor right away.

You or your doctor can submit a report to the Food and Drug Administration’s (FDA) MedWatch Adverse Event Reporting programme online or by phone if you have a serious side event (1-800-332-1088).

What should I know about storage and disposal of this medication?

Keep this medication tightly closed in the original container and out of the reach of children. Keep it away from excessive heat and moisture at room temperature (not in the bathroom).

Although many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and are simple for young children to open, it is crucial to keep all medications out of sight and out of reach of children. Always lock safety caps and promptly stash medication up and away from young children where it is out of their sight and reach to prevent poisoning. http://www.upandaway.org

Unused prescriptions must be disposed of carefully to prevent pets, kids, and other people from ingesting them. You should not, however, dispose of this medication in the toilet. Instead, utilising a medicine take-back programme is the easiest approach to get rid of your medication. To find out about take-back programmes in your area, speak with your pharmacist or the garbage/recycling department in your city. If you do not have access to a take-back programme, see the FDA’s Safe Disposal of Medications website at http://goo.gl/c4Rm4p for additional information.

In case of emergency/overdose

Call the poison control hotline at 1-800-222-1222 in the event of an overdose. Moreover, information can be found online at https://www.poisonhelp.org/help. Call 911 right once if the person has collapsed, experienced a seizure, is having difficulty breathing, or cannot be roused.

What other information should I know?

Ask any inquiries you may have regarding clemastine to your pharmacist.

You should keep a written record of every medication you take, including any over-the-counter (OTC) items, prescription drugs, and dietary supplements like vitamins and minerals. This list should be brought with you whenever you see a doctor or are admitted to the hospital. You should always have this information with you in case of emergencies.

Brand names

  • Dayhist® Allergy
  • Tavist®
  • Tavist® Allergy (formerly Tavist-1®)
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