phentermine and peptides FAQ

Always tell your healthcare provider about any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using. In particular, make sure that you discuss if you are using any of the following before taking phentermine.

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and only take the next dose. Do not take double or extra doses.

Phentermine may work by interacting with certain chemicals in the brain to reduce your appetite.

Phentermine is commonly used short-term to help with weight loss in people who have obesity or who are overweight and have other health conditions, such as high blood pressure, diabetes, or high cholesterol. Phentermine may also be used for other conditions as determined by your healthcare provider.

While less common, the most serious side effects of phentermine are described below, along with what to do if they happen. Increased Blood Pressure in the Lungs (Pulmonary Arterial Hypertension). Rarely, phentermine may increase blood pressure in your lungs, which can lead to death. Stop taking phentermine and call your healthcare provider right away if you have any of the following symptoms of pulmonary arterial hypertension.

Allergies to Ingredients. People who are allergic to any of the following should not take phentermine.

Phentermine should be stored at room temperature, between 68 F to 77 F (20 C to 25 C). It can be exposed to temperatures between 59 F to 86 F (15 C to 30 C), for shorter periods of time, such as when transporting it. Store in a cool, dry place.

There are no known interactions between phentermine and foods or drinks. Drinking alcohol while taking phentermine may increase your risk for certain side effects, like dizziness. It is best to limit the amount of alcohol you drink while taking phentermine.

If you or someone else has taken too much phentermine, get medical help right away, call 911, or contact a Poison Control center at 800-222-1222.

The most common side effects of phentermine are listed below. Tell your healthcare provider if you have any of these side effects that bother you.

Do not take phentermine unless it has been prescribed to you by a healthcare provider. Take it as prescribed. Do not share phentermine with other people, even if they have the same condition as you. It may harm them. Keep phentermine out of the reach of children. Phentermine is a controlled substance because it can be misused or lead to dependence. Store phentermine in a safe place to protect it from theft. It is illegal to sell or give away this medicine. Phentermine can affect your alertness or coordination. Do not drive or do other activities that require alertness or coordination until you know how phentermine affects you. People who are 65 or older can be at greater risk for some side effects of phentermine. Talk to your healthcare provider about your risks if you are in this age group. Phentermine should not be taken later in the evening, as it can lead to trouble sleeping.

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Tell your healthcare provider about all of your health conditions and any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements you are using. This will help them determine if phentermine is right for you. In particular, make sure that you discuss any of the following. Kidney Problems. You may need a lower dose of phentermine if your kidneys are not working as well as they should be. If there is a concern about the health of your kidneys, your healthcare provider may do tests to determine if they are working well enough to take this medicine. High Blood Pressure. Phentermine can increase your blood pressure. Tell your healthcare provider if you have high blood pressure, even if it is only just a little bit high. Pregnancy. Phentermine should not be taken if you are pregnant. Weight loss is not recommended during pregnancy, even if you are overweight. Weight loss during pregnancy may cause harm to an unborn baby. Tell your healthcare provider if you are or plan to become pregnant. Breastfeeding. It is not known if phentermine passes into breast milk. Tell your healthcare provider if you are breastfeeding or plan to breastfeed. Your healthcare provider will advise you if you should stop breastfeeding or stop phentermine.