Phentermine is a medication with stimulant effects. It is often prescribed to treat obesity and was once included in the drug Fen-Phen, which was removed from the market after causing severe cardiovascular problems in many patients. While phentermine is considerably less dangerous than Fen-Phen, it can still cause side effects in some users. Understanding the dangers of phentermine diet pills can help consumers lower their risk of adverse reactions.
Cardiovascular Effects
Phentermine and other stimulants produce their effects by speeding up bodily functions like heart rate, blood pressure and respiration. By boosting metabolism, they help burn calories more efficiently while suppressing the appetite. Unfortunately, these same effects can lead to cardiovascular events like heart attack and stroke.
Due to its stimulant properties, phentermine can cause undue stress on the heart muscles and other cardiovascular organs. According to the National Institutes of Health (NIH), symptoms like heart palpitations, chest pain and severe headache may signal a heart attack or stroke in people taking phentermine.
Overstimulation
Like caffeine and other stimulants, phentermine can cause overstimulation of the mind and body. Symptoms like shaking, insomnia, anxiety and headache may occur in response to overstimulation of the central nervous system. Other signs of overstimulation include dizziness, restlessness, irritability and changes in mood or behavior.
Take phentermine in the morning with breakfast to help prevent insomnia. While taking phentermine, avoid caffeine and other stimulants, which can increase the risk of unpleasant and dangerous side effects.
Abuse and Dependence
For some people, phentermine may carry a risk of addiction and abuse. Phentermine is chemically related to amphetamines and may result in similar states of abuse and dependence. Stopping phentermine after prolonged periods of use may lead to withdrawal symptoms like extreme fatigue and low mood, prompting users to take the drug for non-prescribed purposes.
Long-term use or abuse of phentermine can cause serious health effects. Unhealthy weight loss, insomnia and changes in mood or behavior can occur in those who abuse the drug. Psychological symptoms common in stimulant abusers include agitation, mood swings, irritability and psychosis resulting from sleep deprivation and poor nutrition.
Gastrointestinal Effects
Gastrointestinal side effects are relatively common in patients taking phentermine. Symptoms like dry mouth, constipation, vomiting and diarrhea sometimes occur. While these side effects are generally benign, you should tell your doctor if they persist or interfere with your ability to take the medicine.
Member Comments