Histergan Tablets

Always use this medicine exactly as described in this leaflet or as your doctor or pharmacist has told you.

• Keep this leaflet. You may need to read it again.
• Ask your pharmacist if you need more information or advice.
• If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.
• You must talk to a doctor or pharmacist if your symptoms worsen or do not improve.

1. What Histergan Tablets are and what are they used for?
2. What you need to know before you use Histergan Tablets
3. How to use Histergan Tablets
4. Possible side effects
5. How to store Histergan Tablets
6. Contents of the pack and other information

• if you are allergic to diphenhydramine hydrochloride or any of the ingredients listed in section 6 of this leaflet
• if you have a peptic ulcer
• if you have a blockage between your stomach and small intestine.

Talk to your doctor or pharmacist before taking Histergan Tablets:

• if you suffer from myasthenia gravis (abnormal muscle function)
• if you suffer from seizures or have epilepsy
• If you asthma, bronchitis or Chronic Obstructive Pulmonary Disease (COPD)
• if you have narrow-angle glaucoma
• if you have an enlarged prostate
• if you have difficulty urinating
• if you have moderate to severe liver or kidney problems
• if you are elderly, particularly if you also suffer from confusion.

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines, including:

• Other antihistamines including those used on your skin and in cough and cold medicines
• Tranquillisers or anxiolytics (sedatives) used to treat anxiety e.g. diazepam
• Hypnotics (e.g. nitrazepam) used to help you sleep better
• Monoamine oxidase inhibitors (MAOIs) for depression (e.g. phenelzine) or if you have stopped taking an MOAI within the last two weeks
• Metoprolol (a beta blocker) used to treat high blood pressure, angina, irregular heart beat or overactive thyroid
• Venlafaxine used to treat depression
• Anticholinergics which relax smooth muscles and are used for example in Parkinson’s disease, irritable bowel syndrome and incontinence e.g. procyclidine, trihexyphenidyl, atropine, oxybutynin, fesoterodine
• Tricyclic antidepressants (e.g. imipramine, amitriptyline).

While taking Histergan Tablets avoid alcoholic drink.

Do not take Histergan Tablets if you are pregnant or breast-feeding.

This medicine causes drowsiness and sedation and may also cause dizziness, blurred vision, disturbance in attention and slower reaction times. Do not drive or operate machinery while you are affected in this way.

If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicinal product.

Adults and children over 12 years: 1 or 2 tablets three or four times a day or as prescribed by a doctor.

Not recommended for children under 12 years of age.

Adults: 1 or 2 tablets to be taken at bedtime or after retiring when sleep is not readily achieved.

Do not take a repeat dose in the same night.

Not recommended as a sleep aid in children under 16 years of age.

Seek medical attention as soon as possible. When seeking medical advice you should, if possible, take the medicine and this leaflet with you provided it doesn’t cause a delay.

If you have any further questions on the use of this medicine, ask your doctor or pharmacist

Common effects (may affect up to 1 in 10 people):

• Sedation, drowsiness, dizziness, unsteadiness, disturbance, inattention
• Dry mouth
• Fatigue.

Other effects (frequency not known – cannot be estimated from the data available):

• Palpitations (feeling your heartbeat)
• Headache, tingling or numbness (pins and needles)
• Depression, sleep disturbances
• Confusion, excitation e.g. increased energy, restlessness, nervousness (the elderly are more likely to experience these effects)
• Difficulty urinating or inability to pass urine
• Thicker bronchial mucus
• Blurred vision
• Feeling or being sick, stomach problems
• Muscle twitching.

If you get any side effects, talk to your doctor or pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App store. By reporting side effects you can help provide more information on the safety of this medicine.

Histergan Tablets are pink, sugar coated, tablets and are supplied in packs of 8, 16 or 20 tablets. Not all pack sizes may be marketed.

The marketing authorisation holder is:

The EEA site of batch release is:

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