Can you drink coffee with phentermine?

Coffee is said to be advantageous when taking Phentermine, but only in moderation.

Coffee with Phentermine: Advantages and Disadvantages

Taking coffee while on Phentermine can help to speed up your metabolism even more.

Combining coffee and Phentermine boosts your energy and stamina. It can assist you in improving your training habits.

Coffee and Phentermine together can assist to lower the risk of type 2 diabetes and obesity.

You can expect to lose weight more quickly.


Drinking coffee while taking Phentermine has certain negative side effects.

As previously said, coffee can only be beneficial if used in moderation. When used while on a Phentermine cycle, it can have the following side effects:

Insomnia is a typical Phentermine adverse effect. When Phentermine is used with a lot of caffeine, it might lead to sleeplessness and over-excitement.

Coffee and phentermine are both stimulants. Caffeine can raise your blood pressure and heart rate if you consume too much of it. Caffeine also stimulates the adrenal glands, causing an increase in cortisol and adrenaline production. These hormones regulate glucose metabolism and influence blood pressure.

Excessive caffeine usage is linked to gastrointestinal issues.

Emotional instability, worry, and self-doubt can all be caused by high levels of adrenaline in the blood .

When used with Phentermine, too much coffee might produce nausea, vomiting, and frequent urination


We understand how difficult it is to give up coffee while on medicine because we consume it on a daily basis. However, most doctors would advise you to avoid regular caffeine intake while on a Phentermine cycle due to the "higher" impact of both medications and the likelihood of harmful interactions.