Definitely not. The meds usually take 4 weeks+
What is your relationship like with your manager? Are they supportive? If so then it might be an idea to let them know how you’re feeling. Maybe they can make some adjustments to make work a bit easier for you?
Personally I would not. But that’s personal to me and I wouldn’t want them trying to find a “legal” reason as to let me go since some places can be shady that way.