Tavegil (clemastine)

Side effects

Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.

- Drowsiness
- Headache
- Blurred vision
- Dry mouth
- Disturbances of the gut such as diarrhoea, constipation, nausea, vomiting or abdominal pain
- Difficulty passing urine
- Dizziness
- Awareness of your heart beat (palpitations)
- Confusion
- Tremor
- Disturbed sleep
- Depression

The side effects listed above may not include all of the side effects reported by the drug's manufacturer. For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.

How can this medicine affect other medicines?

If you are already taking any medicines, including those bought without a prescription and herbal medicines, it is important to check with your doctor or pharmacist before taking this medicine. Similarly, check with your doctor or pharmacist before taking any new medicines while taking this one, to ensure that the combination is safe.

There may be an increased risk of drowsiness and sedation if this medicine is taken with any of the following (which can also cause drowsiness):

- alcohol
- antipsychotic medicines, eg haloperidol, chlorpromazine
- barbiturates, eg phenobarbital, amobarbital
- benzodiazepines, eg diazepam, temazepam
- monoamine oxidase inhibitor antidepressants (MAOIs), eg phenelzine, tranylcypromine
- other sedating antihistamines, eg hydroxyzine, promethazine, chlorphenamine
- sleeping tablets, eg zopiclone
- strong opioid painkillers, eg morphine, codeine, dihydrocodeine
- tricyclic antidepressants, eg amitriptyline.

There may be an increased risk of side effects such as dry mouth, blurred vision, urine retention and constipation if this medicine is taken with anticholinergic medicines that can cause these type of side effects, such as the following:

- anticholinergic medicines for Parkinson's symptoms, eg procyclidine, orphenadrine, trihexiphenidyl
- anticholinergic medicines for urinary incontinence, eg tolterodine, oxybutynin
- antipsychotics, eg chlorpromazine, clozapine
- antispasmodics, eg hyoscine, atropine
- monoamine oxidase inhibitor antidepressants (MAOIs), eg phenelzine, tranylcypromine
- tricyclic antidepressants, eg amitriptyline, imipramine.

Other medicines containing the same active ingredient

There are currently no other medicines available in the UK that contain clemastine as the active ingredient.

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