Weight Loss

My Dr. put me on Phentramine which is a weight loss drug to try and help me kick start some weight loss to maybe regulate my hormones and cycle better. Haven’t ovulated or had a period in a few months. Has anyone else been on this drug and had some success? I’m aware “diet pills” are kinda controversial topic, but I’m trusting the opinion of my doctor here. Just wondering if anyone else has been in a similar situation.