Now, anti-histamines, they are one of the most safest medicines which are available in the market and most of them are quite safe. Patients have been using it for years together without causing much of side effects. But any tablet, for a matter, even a simple paracetamol can cause side effects. So you have to be really careful when you are using it, and you should do it only under the guidance or the supervision of an ENT doctor or a doctor who has given you those anti-histamines. In any case most of the anti-histamines have side effects which are categorized into acute and chronic. The acute side effect can be sedation, you have loss of concentration and you feel little weak and tired. Usually you get used to it in a couple of days. There can also be little dryness, you feel itching in the throat and stuff like that, that’s very common. The chronic side effects can range from dryness in the throat, you may end up with weight loss or sometimes even weight gain, you may end up with constipation, drowsiness which may even prolong. But these are all very rare side effects. Nowadays we have the modern generation anti-histamines like the levocetrizine or the fexofenadine. These anti-histamines have got relatively less amount of side effects. In any case, whenever we are taking any anti-histamines and especially if you are taking for a long time make sure that you will consult your doctor who will have a look at of all the body functions. He will say if your liver and other functions are perfectly normal and if otherwise you have no problem in the body like no sugar, no hypertension, or any other problem, then there won’t be any problem in taking anti-histamines.

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