Phentermine HCL Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • High Blood Pressure

If experienced, these tend to have a Less Severe expression

  • Chronic Trouble Sleeping
  • Nervous

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Abnormal Heart Rhythm
  • Hives
  • Inflammation Of Skin Caused By An Allergy
  • Rash

If experienced, these tend to have a Less Severe expression

  • Altered Interest In Having Sexual Intercourse
  • Blurred Vision
  • Constipation
  • Diarrhea
  • Difficult Or Painful Urination
  • Dizzy
  • Dry Mouth
  • Extreme Sense Of Well Being
  • Fast Heartbeat
  • Feeling Agitated
  • Head Pain
  • Heart Throbbing Or Pounding
  • Involuntary Quivering
  • Stomach Cramps
  • Temporary Redness Of Face And Neck

RARE side effects


If experienced, these tend to have a Severe expression

  • Confused
  • Disease Of Inadequate Blood Flow To The Heart Muscle
  • Heart Valve Disease
  • Increased Pressure Of Pulmonary Circulation
  • Psychosis Caused By A Drug

If experienced, these tend to have a Less Severe expression

  • Excessive Sweating
  • Feel Like Throwing Up
  • Feeling Unhappy Or Unwell
  • Frequent Urination
  • Inability To Have An Erection
  • Taste Problems