This information is intended for use by health professionals

1. Name of the medicinal product


2. Qualitative and quantitative composition

Clemastine hydrogen fumarate 1.34mg (equivalent to clemastine base 1mg)

For excipients see 6.1

3. Pharmaceutical form

White, uncoated, round, 7 mm in diameter with beveled edges, smooth on one side and marked with “OT” and scored with a single breakline on the other.

4. Clinical particulars
4.1 Therapeutic indications

Allergic rhinitis, including hay fever and perennial rhinitis, vasomotor rhinitis.

Allergic dermatoses, including pruritus, atopic eczema and contact dermatitis.

Urticaria. Angioneurotic oedema, drug allergy.

4.2 Posology and method of administration


1mg clemastine base (one tablet) night and morning.

In individual cases the dose may be increased to 6mg clemastine base daily if necessary (six tablets).


1 to 3 years: 250 microgrammes to 500 microgrammes clemastine base (¼ - ½ tablet night and morning.

3 to 6 years: 500 microgrammes clemastine base (½ tablet) night and morning.

6 to 12 years: 500 microgrammes to 1000 microgrammes clemastine base (½ - 1 tablet) night and morning.

Use in the elderly

No evidence exists that elderly patients require different dosages or show different side effects from younger patients.

Oral administration only.

Maximum duration of use: Clemastine fumarate should not be used for more than 14 days without consulting a doctor. Do not exceed the recommended dose

4.3 Contraindications

TAVEGIL is contraindicated in patients with a known hypersensitivity to clemastine or other arylalkylamine antihistamines, or any of the excipients.

TAVEGIL should not be given to porphyric patients.

TAVEGIL should not be given to children below one year of age.

4.4 Special warnings and precautions for use

Antihistamines should be used with caution in patients with:

• narrow-angle glaucoma

• stenosing peptic ulcer

• pyloroduodenal obstruction

• prostatic hypertrophy with urinary retention and bladder neck obstruction.

• children due to the risk of excitability in this special population (see section 4.8)

• epilepsy or history of seizures

• in the elderly, who are more likely to experience adverse effects such as paradoxical excitation. Avoid use in elderly patients with confusion. Do not exceed recommended dosage and duration of use without consulting a health care provider (See Dosage and Administration).

Tavegyl tablets contain lactose. Patients with rare hereditary problems of galactose intolerance, the Lapp lactose deficiency or glucose-galactose malabsorption should not take this medicine.

4.5 Interaction with other medicinal products and other forms of interaction

Antihistamines potentiate the sedative effects of Central Nervous System (CNS) depressants including hypnotics, monoamine-oxidase inhibitors (MAOI's), antidepressants, anxiolytics, opioid analgesics and alcohol.

Patients should be advised to avoid alcoholic drinks.

As clemastine has some anticholinergic activity, the effects of some anticholinergic drugs (e.g. atropine, tricyclic antidepressants) may be potentiated.

4.6 Fertility, pregnancy and lactation

TAVEGIL should not be given during pregnancy and breast-feeding.

4.7 Effects on ability to drive and use machines

TAVEGYL has moderate influence on the ability to drive and use machines, due to the antihistamine sedative effect of clemastine, however, patients should be warned not to take charge of vehicles or machinery until the effect of TAVEGIL treatment on the individual is known.

4.8 Undesirable effects

Adverse reactions are listed below, by system organ class and frequency. Frequencies are defined as: very common (≥1/10); common (≥1/100, <1/10); uncommon (≥1/1,000, <1/100); rare (≥1/10,000, <1/1,000) very rare (<1/10,000). or not known (can not to beestimated from available data). Adverse reactions identified during post-marketing use are reported voluntarily from a population of uncertain size, the frequency of these reactions is not known but likely to be rare or very rare


Adverse Reaction


Immune system disorders

Anaphylactic shock


Hypersensitivity reactions


Psychiatric disorders

Excitability, especially in children


Nervous system disorders









Cardiac disorder


Very rare


Very rare

Respiratory, thoracic and mediastinal disorders



Gastrointestinal disorder

Abdominal pain




Dry mouth



Very rare

Skin and subcutaneous tissue disorders

Skin rash


General system disorders



Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme or search for MHRA Yellow Card in the Google Play or Apple App Store.

4.9 Overdose

Symptoms: the effects of antihistamine overdose may vary from CNS depression to stimulation such as depressed level of consciousness, excitability, hallucinations, or convulsions. Anticholinergic symptoms such as dry mouth, mydriasis or flushing, gastrointestinal reactions and tachycardia may also develop.

Treatment: Treatment consists of symptomatic therapy or as recommended by the national poisons centres, where applicable.

5. Pharmacological properties
5.1 Pharmacodynamic properties

Pharmacotherapeutic group: Antihistamines: H1-receptor, ATC code R06AA04

Mechanism of action and pharmacodynamic effects

TAVEGIL (clemastine) is an H1-recptor antagonist. It belongs to the benzhydryl ether group of antihistamines. TAVEGIL inhibits selectively the histamine receptors of the H1 type and reduces capillary permeability. It exerts a potent antihistaminic and antipruritic effect with a fast onset and long duration of action up to 12 hours.

5.2 Pharmacokinetic properties


Following oral administration TAVEGIL (clemastine) is almost completely absorbed from the gastrointestinal tract. Peak plasma concentrations are attained within 2-4 hours. The antihistaminic activity of the drug reaches its peak after 5 to 7 hours; it usually persists for 10 to 12 hours, in some cases, however, for up to 24 hours.


Plasma protein binding of clemastine amounts to 95%.


Clemastine undergoes extensive metabolism in the liver.


Elimination from plasma occurs biphasically, with half-lives of 3.6 ± 0.9 hours and 37 ± 16 hours. The major route of metabolite excretion (45 to 65%) is through the kidneys into urine, where only trace amounts of the parent compound are found. In lactating women, small amounts of the drug may pass into breast milk.

5.3 Preclinical safety data

Non-clinical data reveal no special hazard for humans based on conventional studies of safety pharmacology, repeated dose toxicity, genotoxicity, carcinogenic potential, toxicity to reproduction at therapeutically relevant doses.

In a rat study, a reduction in pup survival, at doses more than 200X the therapeutic dose, was observed when mothers were treated through lactation.

6. Pharmaceutical particulars
6.1 List of excipients

Lactose Monohydrate


Maize Starch

Talc (acid washed)

Magnesium Stearate.

6.2 Incompatibilities

None known.

6.3 Shelf life

36 months

6.4 Special precautions for storage

This medicinal product does not require any special storage conditions

6.5 Nature and contents of container

PVC/PVDC blister pack (50 or 60 tablets).

6.6 Special precautions for disposal and other handling


7. Marketing authorisation holder

GlaxoSmithKline Consumer Healthcare (UK) Trading Limited,

980 Great West Road




United Kingdom

8. Marketing authorisation number(s)

PL 44673/0179

9. Date of first authorisation/renewal of the authorisation

08 June 2000

10. Date of revision of the text

11th February 2019