Take it - but do it right! "Does the remedy also help quickly?" "How long does the effect last?" "What dose can I give a small child?" Three experts provide the answers: lightning-fast, clear, well-founded! Tips and advice that doctors or pharmacists will look for in vain elsewhere. Recommended dosages for nearly 800 drugs. Pharmacokinetics for practice. Whether a drug works depends very much on the doctor or pharmacist. Make sure that the dose, time of administration, and time between meals are correct. After all, it's the success of the therapy that counts!.