Phentermine
People mainly take Phentermine for weight loss, energy, appetite. Based on 5 first-hand reports. Ranked #522 of 1,974 overall.
26
User score
Mostly positive60% positive20% mixed20% negative0% unclear
Of reports that state an outcome, 60% are positive.
Clinical research
Research pending
What Phentermine does, according to users
Of the people who reported each effect, the share who said it got better.
4 more with fewer than 3 reports
betterno changeworse
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
Research data for Phentermine is being compiled.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
37.5 mgas reported
Reported side effects
How often each side effect came up across all reports.
No side effects reported so far.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“Lost 35 lbs, felt great...had that clarity and focus I've never had before...My car, my apartment, and my work were clean and organized. I had impulse control. I had zero side effects.”
“She went from early obesity class 3 to mid-class 1 since, and continues the effort.”
“one class of drugs is stimulants. Adderall, Vyvanse, Phentermine, Sibutramine, etc. all destroy appetite and up energy.”
“Phenteramine used to be the best appetite suppressant but a host of adverse effects with not too much weight loss”
“prescribed 37.5mg of Phentermine which I finished my dosage of with little to no effects for me.”
Top discussions (5)
- "Try Not To Multitask, and be less distracted". Great convo I had with my doctor today. ↗
- What nootropics to look at to help a person who's been low energy her entire life? ↗
- Peptide and Weight Loss ↗
- Newbie - dr recommended cjc1295/ipamorellin and hcg for weight loss. Does this seem like a good plan? Struggling with weight loss ↗
- Obese 26 Year Old Male Considering Peptides ↗
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User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate