TENSION TYPE HEADACHE TREATMENT PREVENTION it is recommended for people who have long standing frequent headaches with significant disability ANTIDEPRESSANT medicines are usually given they belong to class of drugs called as tricyclics..it includes the prototype drug AMYTRIPTILINE.the dose for headache prevention is much lower than used for treating depression.these drugs reduce pain perception if used in low doses. it also helps in improving the sleep.the full effect of drug appers after 4 to 6 weeks