All medicines best drink of water. Other drinks may weaken or strengthen their performance. For example, antibiotics do not drink milk because it lose its bactericidal power. By contrast, preparations of cardiac hypertension and should not be combined with juice because enhances their performance, resulting in cardiac arrhythmias are sometimes or sudden drop in blood pressure. - Comply with recommendations on timing of medication and meals. Some are best taken with food, while others either before or after a meal. Recommendation "before eating" means that the drug will work best if you take him 30-60 minutes before a meal. "During the meal - preparation should take at least 5 minutes after starting to eat. "After eating" - the medicine we take 30-60 minutes after a meal.  Pay attention to what you eat. If, for example are taking iron preparations, do not eat after taking the rhubarb and spinach for two hours. Contain oxalic acid, which prevents absorption of iron in the intestine. It increases the vitamin C, which are abundant in citrus fruits.  Do not use while some painkillers or cold remedies. If they contain the same substance, you can overdose. In addition, some components of such preparations should not be combined, such as paracetamol and aspirin. Do not chew sugar-coated tablets and capsules. After that contain the cap to drug dissolved only in the small intestine. By contrast, you can chew the tablet, if it is difficult for you to swallow, and so I have to dissolve in the stomach.  If you are taking antibiotics, use during treatment and after it finished, preparations containing probiotics to restore the normal bacterial flora in the gut.  Preparations for Exercise drops in a teaspoon of sugar or a little water. They measured the amount precisely dropper.  Check the leaflet that has information that the drug can cause (edema, urticaria). Cause them not only from St. John's wort preparations, but it also includes some antibiotics, sulfonamides, drugs to lower cholesterol. Medications suppositories work faster and stronger than oral preparations. Contained inside the active substance reaches the bloodstream, bypassing the gastrointestinal tract. But they should not be taken for more than a month. Then you need to do week break.