You know it is categorized as an antidepressant? Be careful about weight gain. Yes you can become "angry" etc., you may get used to the med and get over it, or you may just need to change to something else. I quit taking that category of med just because of the weight gain. I do, however get angry, periodically, particularly at machines, i.e. the computer taking so long and doing it's own thing instead of what I want it to do. You just have to be aware of it and go to another room or some other distraction to avoid hurting the ones you love. Track your "side effects" and decide if you can control them or if you need to change to something else.

Interesting I've been on it a few years and I'm angry 24 7 with no patience. I have depression fibromyalgia and borderline personality disorder so I blamed that. But when I switches anti depressant to mertazipine I was even worse.

The medication can cause personality changes as you found out.

Can I ask what dosage people are on I will start and take 375mg a day Taking 150 in the morning and 225mg at night I know when i miss a dose. I have been on them for about 10 Years and I bloody HATE THEM

Yea I had some similar side effects, plus scary heart palpitations.