What is a Patient Information Leaflet and why is it useful?

The Patient Information Leaflet (PIL) is the leaflet included in the pack with a medicine. It is written for patients and gives information about taking or using a medicine. It is possible that the leaflet in your medicine pack may differ from this version because it may have been updated since your medicine was packaged.

Below is a text only representation of the Patient Information Leaflet. The original leaflet can be viewed using the link above.

The text only version may be available in large print, Braille or audio CD. For further information call emc accessibility on 0800 198 5000. The product code(s) for this leaflet is: PL 16853/0078.


Periostat 20mg film-coated tablets

PATIENT INFORMATION LEAFLET

PERIOSTAT® 20 mg film-coated tablets

doxycycline

Read all of this leaflet carefully before you start taking this medicine

  • Keep this leaflet. You may need to read it again.
  • If you have any further questions, ask your dentist, doctor or pharmacist.
  • This medicine has been prescribed for you. Do not pass it on to others. It may harm them, even if their symptoms are the same as yours.
  • If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet please tell your dentist, doctor or pharmacist.

The information in this leaflet has been divided into the following sections:

1. What Periostat is and what it is taken for
2. Check before you take Periostat
3. How to take Periostat
4. Possible side effects
5. How to store Periostat
6. Further information

1. What Periostat is and what it is taken for

Periostat belongs to a group of medicines called tetracyclines. Tetracyclines are a type of antibiotic although the very small dose of doxycycline contained in Periostat is not high enough for Periostat to act as an antibiotic.

Periostat tablets are used in the treatment of periodontitis (a condition of the gums which can cause teeth to become loose or fall out).

The standard treatment for periodontitis is a scaling and root planing carried out by your dentist or dental hygienist. Periostat is then prescribed by your dentist as an additional treatment. The oral hygiene routine explained by your dentist or dental hygienist should continue at the same time.

The periodontium, which is made up of collagen fibres, is the part of the gum that gives support to each tooth and it is this part that is affected by periodontitis. Periodontitis is caused by the presence of bacteria at the gum line which can cause inflammation and infection of the gum.

The body’s immune system makes special cells to fight the gum infection. The body releases enzymes into the gums which break down the collagen fibres around the tooth and allows these special cells to get to the site of infection. Unfortunately, although the enzymes are part of the body’s own defence system, they actually damage the gum. This can cause teeth to become loose or even fall out. Diagram 1 explains the causes of periodonitis.

Diagram 1: The causes of periodontitis

Periostat reduces the effect of the collagenase enzymes. This can make your gums healthier and increase the stability of your affected teeth.

Diagram 2 explains how scaling and root planing with the addition of Periostat treats periodontitis.

Diagram 2: How scaling and root planing with Periostat treats periodontitis

2. Check before you take Periostat

Do not take Periostat:

  • if you are allergic (hypersensitive) to doxycycline (or any other tetracycline antibiotic e.g. oxytetracycline, tetracycline, chlortetracycline, demeclocycline or minocycline) or any of the ingredients of Periostat (see Section 6 Further information)
  • if you are pregnant or think you might be pregnant
  • if you are planning to become pregnant
  • if you are breast-feeding
  • if you have achlorhydria (lack of acid in the stomach)
  • if you suffer from phototoxicity (skin rashes caused by sunlight). Stop taking Periostat if this happens and consult your doctor.

Do not give this medicine to children under the age of 12.

If any of the above applies to you, or if you are not sure, speak to your dentist, doctor or pharmacist before you take Periostat.

Take special care with Periostat

Before you take Periostat tell your dentist, doctor or pharmacist if:

  • you have porphyria (a disease which causes stomach pain, constipation, changes in the colour of urine, skin rashes and disturbed behaviour)
  • you have severe diarrhoea (see Section 4 Possible side effects)
  • you have myasthenia gravis (a rare muscle weakness disorder)
  • you have liver problems or are taking medication which may damage your liver (see Section 4 Possible side effects)
  • you have thrush (a yeast infection caused by Candida)
  • you are intolerant to some sugars (see Important information about some of the ingredients of Periostat)
  • you have systemic lupus erythematosus (SLE). An allergic condition which causes joint pain, skin rashes and fever (see Section 4 Possible side effects)
  • you have acne and you are taking any medicine containing isotretinoin (see Taking other medicines)
  • you have diabetes and are taking sulfonylurea agents (see Taking other medicines)
  • you are about to have surgery under anaesthetic (see Taking other medicines).

If any of the above applies to you, or if you are not sure, speak to your dentist, doctor or pharmacist before you take Periostat.

Taking other medicines

Tell your dentist, doctor or pharmacist if you are taking or have recently taken any of the following medicines as they may interfere with Periostat:

  • aluminium containing products (used to neutralise acid in your stomach)
  • zinc containing products (used to treat low zinc levels)
  • calcium containing products (used to treat low calcium levels or as an antacid)
  • anti-coagulant medication for example warfarin (used to thin the blood)
  • penicillin or rifampicin (antibiotics to treat infections)
  • antacids (used to neutralise acid in your stomach)
  • iron containing products (used to treat low iron levels)
  • bismuth containing products (used to treat stomach ulcers)
  • sucralfate-containing products (used to treat stomach ulcers)
  • activated charcoal (used to treat poisoning)
  • cholestyramine (used to reduce cholesterol levels and prevent heart disease, to treat itching due to liver problems and diarrhoea)
  • didanosine tablets (used to treat HIV)
  • quinapril (used to treat high blood pressure or heart failure)
  • barbiturates, carbamazepine, phenytoin and primidone (medication to control epilepsy)
  • ciclosporins (used to suppress your immune system after an organ transplant)
  • methoxyflurane (a type of anaesthetic)
  • isotretinoin (used to treat acne)
  • sulfonylurea agents (used to treat diabetes, e.g. chlorpropamide, glibenclamide, gliclazide, glimepiride, glipizide or gliquidone)
  • oral contraceptives (used to prevent pregnancy).

Please tell your dentist, doctor or pharmacist if you are taking or have recently taken any other medicines, including medicines obtained without a prescription.

Taking with food and drink

Periostat should be taken at least one hour before meals.

Food containing large amounts of calcium (e.g. milk, dairy products and calcium-containing fruit juices) should be avoided until at least 2 to 3 hours after taking Periostat.

Consult with your doctor before taking Periostat if you regularly drink large amounts of alcohol.

Pregnancy and breast-feeding

Periostat should not be used during pregnancy or if you are breast-feeding. Taking Periostat during pregnancy may result in permanent discolouration of your child’s teeth.

Periostat passes into the milk of breast-feeding mothers and therefore you should not breast-feed whilst taking this medicine.

Driving and using machines

Taking Periostat may make you feel sick or dizzy. If you are affected you should not drive or use machines until the effect has worn off.

Important information about some of the ingredients of Periostat

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

3. How to take Periostat

Always take Periostat exactly as your dentist has told you to. You should check with your dentist, doctor or pharmacist if you are not sure.

The usual dose is one tablet in the morning and one in the evening.

Periostat should be taken at least one hour before going to bed for the night and at least one hour before meals. Try and take the medication at the same times each day.

The tablets should be swallowed with a drink of water in the sitting or standing position followed by plenty of fluid. Do not lie down immediately after taking the tablet.

Periostat is usually taken for a minimum of 3 months and can be taken for up to 9 months at a time. It is important that you continue to take Periostat until your dentist tells you to stop.

What to do if you take more Periostat than you should

If you accidentally take too many tablets, or someone else takes any of your medicine, you should tell your doctor at once or contact the nearest accident and emergency department. Show any left-over medicines or the empty packet to the doctor.

If you forget to take Periostat

Do not worry. If you forget to take a dose, just take the next dose as normal. DO NOT take a double dose. Then go on as before.

If you stop taking Periostat

Complete the prescribed course unless otherwise directed by your dentist or doctor.

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

4. Possible side effects

Like all medicines, Periostat can cause side effects, although not everybody gets them.

If any of the side effects listed below occur, contact your doctor as soon as possible:

  • you have a severe allergic reaction which includes sudden wheeziness, chest pain, difficulty in breathing, sudden swelling, fever, skin rash or itching (see Section 2 Check before you take Periostat)
  • you have severe headaches together with disturbed vision. This may mean you have increased pressure in the brain
  • you have diarrhoea which is watery or contains blood (see Section 2 Check before you take Periostat)
  • you suspect you have a problem with your liver (this may cause yellowing of the skin or whites of the eyes and/or severe stomach pains) (see Section 2 Check before you take Periostat).
  • you have Stevens-Johnson syndrome (a serious illness which causes blistering of the skin, lining of the mouth, throat, eyes and genitals).
  • the Jarisch-Herxheimer reaction which causes fever, chills, headache, muscle pain, and skin rash that is usually self-limiting. This occurs shortly after starting doxycycline treatment for infections with spirochete such as Lyme disease.

Other side effects are:

Very common side effects (more than 1 in 10 patients) of Periostat include:

  • headache
  • common cold
  • flu like symptoms (such as fever).

Common side effects (more than 1 in 100 patients) of Periostat include:

  • acid indigestion (heartburn)
  • feeling sick
  • diarrhoea
  • indigestion
  • rash
  • sinusitis (inflammation of the nasal passages), coughing and bronchitis
  • tooth abscess
  • sore throat and sinus headache
  • toothache, pain of any sort, joint and back pain
  • period pains
  • infection (e.g. thrush).

Uncommon side effects (more than 1 in 1000 patients) of Periostat include:

  • muscle and gum pain
  • flaking or peeling of the skin.

Rare side effects (more than 1 in 10,000 patients) of Periostat include:

  • vaginal and anal thrush (causing soreness and/or itching of the rectal and/or genital area) and oral thrush (causing pale patches at the corner of your mouth)

Very rare side effects of Periostat include:

  • dizziness
  • stomach pain, constipation, dry mouth and temporary tooth discolouration
  • colitis (inflammation of the intestines which can cause stomach pain, diarrhoea and other symptoms) and pseudomembranous colitis (infection of the intestines which can cause stomach pain, fever and diarrhoea)
  • your skin becoming sensitive to sunlight
  • weakness
  • itching.

Other side effects that have occurred in people taking other tetracyclines similar to Periostat are:

  • Blood disorders. These are due to an imbalance in numbers of different cell types in the blood. Symptoms may include tiredness, easy bruising, nose bleeds or susceptibility to infection.
  • Lack or loss of appetite, inflammation of the tongue and difficulty in swallowing.
  • Inflammation and/or ulcers of the gullet (food pipe). This can be avoided by taking Periostat in an upright position with water (see Section 3 How to take Periostat).
  • Increase in blood urea (this is detected by a blood test).
  • If you suffer from a disease called systemic lupus erythematosus (SLE), an allergic condition which causes joint pain, skin rashes and fever you may notice your condition gets worse.
  • separation or loosening of a fingernail or toenail from its nail bed following exposure to sunlight or ultraviolet rays.

If any of the side effects gets worse, or if you notice any side effects not listed in this leaflet, please tell your dentist, doctor or pharmacist. You can also report side effects directly via the internet at www.mhra.gov.uk/yellowcard or call Freephone 0808 100 3352. By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Periostat

Keep out of the reach and sight of children.

Do not use Periostat after the expiry date {EXP mm yyyy} which is stated on the white container or blister pack. The expiry date refers to the last day of that month.

Do not store above 25°C. Do not remove the tablets from the container or blister pack until you are ready to take the medicine. When tablets are supplied in a white container, always ensure the desiccant is returned to the container, and the container tightly closed after each dose is removed. Do not swallow the desiccant, and should this occur, contact your dentist or doctor immediately.

Do not take Periostat if you notice the appearance of the tablets has changed in any way.

Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.

6. Further information

What is in Periostat?

The active ingredient in this medicine is doxycycline hyclate.

Each tablet contains 23.08 mg doxycycline hyclate equivalent to 20 mg doxycycline. The other ingredients are:

  • tablet core: microcrystalline cellulose, magnesium stearate
  • film-coating: lactose monohydrate, hypromellose (E464), titanium dioxide (E171) and triacetin.

What Periostat looks like and contents of the pack

Periostat tablets are white to off-white round tablets imprinted on one side with PS-20.

Periostat tablets are supplied in either blister packs contained in a carton (28 or 56 tablets) or in a white container, with a child resistant closure (60 tablets). Not all pack sizes may be marketed.

Marketing Authorisation Holder and Manufacturer

The Marketing Authorisation Holder is:

Alliance Pharmaceuticals Limited
Avonbridge House
Chippenham
Wiltshire
SN15 2BB
UK

Periostat is manufactured by:

Chanelle Medical
Loughrea
Co. Galway
Ireland

and

TD Packaging Ltd
Unit 6
Stephenson Road
Groundwell Industrial Estate
Swindon
WiltshireSN25 5AX
UK

The information in this leaflet applies only to Periostat. If you have any questions or you are not sure about anything, ask your dentist, doctor or a pharmacist.

This leaflet was last revised: October 2017 .

Periostat is a registered trade mark of Alliance Pharmaceuticalsl Limited.

Alliance and associated devices are registered trade marks of Alliance Pharmaceuticals Limited.

© Alliance Pharmaceuticals Limited 2017.

Periostat Tabs PIL UK 008