I lost my brother to suicide 5 years ago and researched the meds he was on. I was undecided whether or not meds worked. What I learned was certain diseases need meds - like my brother. For myself- I don't like to take meds, but I can see where someone needs to "take the edge off life" to help get through bad times. I commend them for recognizing this.
Now- enter PTSD. My son was in a terrible accident. He started having panic attacks (we had to get him from college one night as he couldn't drive home) and when we went to the Dr. he prescribed a mild antidepressant. After the problems with my brother's suicide I was totally against giving them to him. But the dr. explained it was temporary and just to relax his brain to let it heal for about 3 months. (He had minor injuries but there were issues in treatment time and he was life flighted to the trauma unit) The transformation was amazing- he turned into this nice person. We could talk about the accident and he understood what he was feeling and relaxed for the first time in months. He ended up flunking the semester so we have a do-over this fall but I have my son, the alternative was not nice. But the panic attacks are gone and he is now ready to go back to college in the fall.
But- grieving- we all grieve differently and to different depths. I know I felt the deepest sense of loss after I lost my brother and went through some life changing times. I quit a high paying (stressful) job because I couldn't take being away from my children and became fanatical about their whereabouts at all times. I look back and realize I could have benefited from some meds, but I was so angry at my brother for not using his meds correctly and completing suicide. So if you need them- take them. If you don't want them, don't take them.