I have been on 75 mg of welbutrin for 16 days. I am wondering if my dose is too low for me to feel an effect from it. I am eager to feel the "good" effects of welbutrin but I am becoming discouraged as the days pass. The only effect I've had is dry mouth and insomnia. I have read about many people who are extremely happy with welbutrin but they are all on high doses. I would love to hear from someone's expirence with 75 mg a day of the drug.