When using Grazax, you should follow the instructions given to you by your doctor. The usual dose given is one tablet daily. To get the best effect, you should start taking the tablets 4 months prior to the expected start of the grass pollen season and should continue treatment for 3 years. Place the tablet under the tongue and allow it to dissolve. Do not swallow during the first minute and do not eat or drink for at least 5 minutes.

If you take more tablets than required, you may experience allergic symptoms including local symptoms from mouth and throat. If these symptoms become severe, immediately contact your doctor or hospital.If you forget to take a dose, do not double up doses. Take the dose as soon as your remember and then take the next dose at the correct time.

Grazax tablets contain the active ingredient SQ standardised allergen extract of grass pollen from Timothy (Phleum Pratense). Other ingredients include gelatine (fish source), mannitol and sodium hydroxide.

Grazax tablets should not be taken if you are allergic to any of the ingredients in the medicine, if you have an illness which affects the immune system, if you have severe asthma, if you have cancer or if you have a mouth inflammation which is severe. Speak to your doctor before taking Grazax is you have a severe allergy to fish. If you have recently had a tooth taken out or have had other forms of oral surgery, treatment with Grazax should be stopped for 7 days to allow the oral cavity to heal. In children with asthma experiencing an acute upper respiratory tract infection, Grazax should be stopped until the infection has resolved.

You should make sure to mention if you are taking any other medicines, including medicines obtained without a prescription. If you are taking other medicines for allergy symptoms, such as antihistamines or corticosteroids, you should speak to your doctor before taking Grazax.

You should not start treatment of Grazax during pregnancy, but if you fall pregnant during treatment, you should speak to your doctor about continuing treatment. There is no experience for the use of Grazax during breast-feeding. No effects on the breastfed infants are anticipated.

As with all medicines, Grazax can cause some side effects, although not everybody gets them. You may get an allergic response to the allergen in the tablets. If this happens, the effects last from minutes to hours after taking the tablets and settles down within one week of starting treatment. You should stop taking Grazax and contact your doctor immediately if you suffer from rapid swelling of face, mouth or throat, have difficulties in swallowing or breathing, your voice changes, your asthma worsens, you get severe discomfort or you get hives. Common side effects include getting a common cold, mouth itching, irritating sensation in the throat, headache, prickling sensation or numbness of the skin, mouth or tongue, eye or ear itching, eye, nose or mouth inflammation, asthma symptoms, shortness of beath, cough or sneezing, dry throat, nasal discomfort, swelling for example of lips or tongue, blistering or other discomfort of mouth, tongue or throat, stomach pain or discomfort, diarrhoea, feeling sick, vomiting, heartburn, itching in relation with for example rash, nettle rash or eczema, tiredness, chest discomfort or pain and fever. Uncommon or rare side effects include sensation of rapid, forceful or irregular beating of the heart, lymph node swelling, dizziness, altered taste, decreased appetite, eye redness, irritation or swelling, tear flow, ear pain or discomfort, hoarseness, tightness, redness or numbess in the troat, painful swallowing, tonsil enlargement, allergic reaction, mouth redness or pain, dry mouth, swelling of roof of the mouth, lip blister, lip inflammation, salivary gland enlargement or hypersecretion, gum swelling or pain, gastritis, regurgitation, feeling hot, feeling of discomfort, sensation of foreign body in the throat, skin redness, flushing, swelling of face or throat, lower airways constriction.

If any of these side effects get serious, or you get side effects not listed above, please speak to your doctor or pharmacist.