Benylin cough and congestion

How can this medicine affect other medicines?

If you are already taking any other medicines, including herbal medicines and those bought without a prescription, you should check with your pharmacist before taking this medicine, to ensure that the combination is safe.

The manufacturer states that this medicine should not be used by people who are currently taking a monoamine oxidase inhibitor antidepressant, eg phenelzine, tranylcypromine, isocarboxazid or moclobemide, or who have taken one of these medicines in the last 14 days.

There may be an increased risk of drowsiness if this medicine is taken in combination with any of the following, which can also cause drowsiness:

alcohol

benzodiazepines, eg temazepam, diazepam

sedating antihistamines, eg chlorphenamine, hydroxyzine, triprolidine, promethazine (these are often found in other non-prescription cough and cold or hayfever remedies)

sleeping tablets, eg zopiclone

strong opioid painkillers, eg codeine, dihydrocodeine, morphine

tricyclic antidepressants, eg amitriptyline.

These should be avoided while taking this medicine.

There may be an increased risk of side effects such as dry mouth, blurred vision, constipation or difficulty passing urine if this medicine is taken with any of the following medicines:

anticholinergic medicines for urinary incontinence, eg oxybutynin, flavoxate, tolterodine, propiverine, trospium

anticholinergic medicines for Parkinson's disease, eg trihexyphenidyl, orphenadrine, procyclidine

antipsychotic medicines, eg chlorpromazine, clozapine

antispasmodics, eg atropine, hyoscine

certain antisickness medicines, eg promethazine, prochlorperazine, meclozine, cyclizine

muscle relaxants, eg baclofen

tricyclic or related antidepressants, eg amitriptyline, maprotiline.

If pseudoephedrine is taken with any of the following the combination may cause an increase in blood pressure:

other decongestants (often found in non-prescription cough and cold remedies)

tricyclic antidepressants, eg amitriptyline

appetite suppressants

amphetamine-like stimulants.

Other medicines containing the same active ingredients

There are currently no other medicines available in the UK that contain these four active ingredients.

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