Limits are in use.

Beta blockers are not use in high level destroy of pulse penetration in the heart, bradicardia, blood basd circulation in extremities, and not cured weak heart, impotence, basd sleep, breath diseases, sugar diabetes, and not use are professional sportsmans. AND not are all theirs good enduring as in low pressure by a nature or low frequently of heart shortens will rise tiredness or dizziness and in use of propranul is feeling cold in hands and legs, in male is potence destroy, and in bad sleep to corect as dosage ofredistribution, and these sdide effects are timely and removing after remedy changing, as in slow slow rising dose they are self remove or you can to habit, as with preventing methods using,are sport, bycicle,run by jogger, are additional activating blood circulation, and preventing method affecting on an all person s organism, and on the headaches.
And course for cure as in positive result reedy use regularity are 6-12 months, after slowly changes his, and if fast change after long used are bad side effects displays of heartberating, as vegetative system here set is on the remedy and must a slowly retire of his, and both these beta blocjers are metopropranol and propranol use and for childrens , but is low dosages.