Can phentermine cause you to miss your period?

[jackie0428_16]

I need to know I've taken 2 pregnancy tests and they are negative but I just want to knoe if taking this medication cause an absent of a period or delayed one.

[twisted]

Side effects
Generally, phentermine appears to be relatively well tolerated.[3] It can produce side effects consistent with its catecholamine-releasing properties, e.g., tachycardia (increased heart rate) and elevated blood pressure, but the incidence and magnitude of these appear to be less than with the amphetamines. Because phentermine acts through sympathomimetic pathways, the drug may increase blood pressure and heart rate. It may also cause palpitations, restlessness, and insomnia. Additionally, phentermine has the potential to cause physical and psychological dependence.

More Common Symptoms

Insomnia
Increased blood pressure
Irritability
Nervousness
Sense of well-being
Less Common to Rare Symptoms

Blurred vision
Change in sexual desire
Clumsiness
Confusion
Diarrhea
Dizziness
Dry mouth
Headache
Irregular heartbeat
Nausea or vomiting
Psychosis
Skin rash or itching
Stomach pain
Tiredness
Unpleasant taste
Possible Overdose Symptoms

Confusion
Convulsions (seizures)
Dizziness
Fast Breathing
Fever
Hallucinations
Hostility with urge to attack
Irregular blood pressure
Irregular heartbeat
Lightheadedness or Fainting
Mental Depression, following a period of excitement
Tremors, Trembling, or Shaking
Overactive Reflexes
Panic
Restlessness
Severe nausea, vomiting or diarrhea
Stomach cramps
Tiredness or Weakness

[tinmuning]

If you google women's experiences with phentermine, you'd see that a number complain of numerous changes in their menstrual cycle like it gets earlier or delayed. Some even take pregnancy tests too and they came up as negative. Best to consult with and OB GYN to confirm.