The timing of taking Elavil, a multivitamin and micronutrient combination, does not vary from one individual to another. Generally, these nutrients can be taken during the first trimester of pregnancy, at least until after the third trimester of pregnancy. After the third trimester, you can temporarily stop taking it if there are no obvious indications. Some women are not able to meet the supply of nutrients needed for the growth and development of their babies because their dietary intake is significantly inadequate after pregnancy.