Hi. Welcome to HCM. It would have better if u had mention your husband age and if he is taking any other medications along with
sertraline. This drug is prescribed to treat a variety of conditions, including
depression and other mental/mood disorders. Some common side effects are nausea, dizziness,
drowsiness, dry mouth, loss of appetite, increased sweating, diarrhea, upset stomach, or trouble sleeping. But please do report to your doctor if any of the following occurs, easy bruising/bleeding, decreased interest in sex, decrease in sexual ability (ejaculation delay), muscle cramps/weakness, shaking (tremor), unusual
weight loss. The
neck pain he is having could be a side effect of this drug. I would suggest you to consult your doctor if this still persists as soon as possible. Wish u good health