Relapsing MS occurs when symptoms show up from time to time. Gilenya is in a class of drugs known as sphingosine I-phosphate receptor modulators, which work by keeping immune cells in the lymph nodes, so they can't reach and damage the brain or spinal cord.elapsing MS occurs when symptoms show up from time to time. Gilenya is in a class of drugs known as sphingosine I-phosphate receptor modulators, which work by keeping immune cells in the lymph nodes, so they can't reach and damage the brain or spinal cord.
Answer: An ultrasound is the least invasive way to find out if you are having a boy or a girl. It is best done during the 18-22nd weeks of your pregnancy.
CVS is carried out earlier in pregnancy, between about 11 weeks and 14 weeks. It is similarly only used to determine a baby's sex when there is likely to be a serious gender-related problem.