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Author: Admin | 2025-04-28
Changes in libido and impotence are not the most talked-about phentermine side effects, but with over 17% of users reporting phentermine sexual side effects, these reactions are worth discussing ( 1 ).Some people experience increased libido, while others have no sex drive at all or even sexual dysfunction.Does Phentermine Affect Sex Drive?Almost 1 in 5 patients experience phentermine sex drive changesYes, phentermine can either increase or decrease users’ interest in sex. The medication can also cause sexual dysfunction, which leads to further problems with patients’ sex lives.Interestingly, common phentermine sex-drive changes differ between genders. While men tend to suffer from lower sex drive, women are more likely to report increased libido while taking phentermine ( 2 ).Sexual Side Effects of PhentermineThe FDA’s list of common phentermine side effects includes two sex-related reactions ( 3 ):Sexual impotenceChange in sexual desireThese and other, unlisted phentermine sexual side effects occur in both men and women.Successful sexual arousal and performance is dependent on a delicate balance of central nervous system (CNS) signals, so it is not surprising that CNS stimulants like phentermine often affect this process – either for better or worse.Thankfully, user reports suggest that phentermine sexual side effects usually resolve in 1-2 weeks, or as soon as the body adjusts to the new medication.Consult a doctor if phentermine sexual side effects get worse or don’t go away. There are a variety of medications that can help, as can adjusting your dose or schedule.The most common phentermine sexual side effects include:1. Sexual Dysfunction or ImpotencePhentermine promotes weight loss by stimulating the central nervous system.The hormonal changes associated with this simulated “fight or flight” reaction suppresses appetite and boost energy, which promote weight loss. However, the same hormones also signal the body to divert blood flow away from less-essential areas, such as the digestive system and reproductive organs ( 4 ). As a result, some phentermine patients experience sexual dysfunction related to hormonal changes or decreased blood flow to the genital region.In men, this usually presents as erectile dysfunction, while women may experience dryness, pain or trouble orgasming during sex.Erectile DysfunctionA small percentage of
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