Tianmaxin tablets specific how long to take to be effective is determined by their own sensitivity to the drug, the condition, can not be accurately judged, some patients use the effect of time from 3 days to half a month, or even longer. Tianmaxin tablets are used to treat neurasthenia, headache, migraine and other conditions. The instructions for the drug do not specify how long it takes for the drug to be effective in treating the disease in question. The specific effect of the drug time is determined by their own sensitivity to the drug, the severity of the condition and other factors, fast may be three or four days to take effect, slow may need half a month or more to take effect. Adverse effects of Tianmuin Tablet include dry mouth and nose, dizziness, and epigastric discomfort in a few patients; this drug is contraindicated in people who are allergic to this product. When using this drug to treat related diseases, it is necessary to use it under the guidance of a doctor and in accordance with medical advice.