Phentermine and Rectal bleeding - from FDA reports


Rectal bleeding is reported only by a few people who take Phentermine. We study 11,467 people who have side effects while taking Phentermine from FDA. Among them, 5 have Rectal bleeding. Find out below who they are, when they have Rectal bleeding and more.

What to expect?

If you take Phentermine and have Rectal bleeding, find out what symptoms you could have in 1 year or longer.

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Join a support group for people who take Phentermine and have Rectal bleeding

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On May, 15, 2017

11,467 people reported to have side effects when taking Phentermine.
Among them, 5 people (0.04%) have Rectal Bleeding

Number of reports submitted per year:

Could Phentermine cause Rectal bleeding?

Gender of people who have Rectal Bleeding when taking Phentermine *:

  • female: 80 %
  • male: 20 %

Age of people who have Rectal Bleeding when taking Phentermine *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 40 %
  • 50-59: 60 %
  • 60+: 0.0 %

Top co-used drugs for these people *:

  • Xenical (2 people, 40.00%)
  • Synthroid (2 people, 40.00%)
  • Premarin (2 people, 40.00%)
  • Nutropin Aq (2 people, 40.00%)
  • Methocarbamol (1 person, 20.00%)

Top other side effects for these people *:

  • Steatorrhea (2 people, 40.00%)
  • Drug Maladministration (2 people, 40.00%)
  • Orthopnea (1 person, 20.00%)
  • Oedema Lower Limb (1 person, 20.00%)
  • High Blood Pressure (1 person, 20.00%)

* Approximation only. Some reports may have incomplete information.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

Do you have Rectal bleeding when taking Phentermine?


Phentermine has active ingredients of phentermine hydrochloride. It is often used in weight loss. (latest outcomes from Phentermine 14,592 users)

Rectal Bleeding

Rectal bleeding (bleeding from rectum) has been reported by people with high blood cholesterol, hyperglycemia, fluid retention, esophagitis, allergy to mold - dander - dust (latest reports from 3,172 Rectal bleeding patients).

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Drugs that are associated with Rectal bleeding

Rectal bleeding

Could your condition cause Rectal bleeding

Rectal bleeding

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