Can phentermine cause sleep problems?

The most common side effects of phentermine are dry mouth, insomnia, and constipation. Although all sympathomimetic agents can increase blood pressure and heart rate, these abnormalities usually do not occur with phentermine therapy in the presence of weight loss.

How can I prevent insomnia while taking phentermine?

Administer before breakfast or one-to-two hours after breakfast. Avoid late evening administration as this may cause insomnia. Some people may benefit from a twice-daily dosage regimen.

Does phentermine keep you awake at night?

Insomnia: Because it is a stimulant, phentermine will most likely keep you awake if you take it too late in the day. This side effect also decreases in most patients after they have been on the medication for several weeks.

What are the bad side effects of phentermine?

Dizziness, dry mouth, difficulty sleeping, irritability, nausea, vomiting, diarrhea, or constipation may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

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What happens if i take phentermine before bed?

Phentermine and topiramate come as extended-release capsules to take by mouth. The medication is usually taken with or without food once a day in the morning. This medication may cause difficulty falling asleep or staying asleep if it is taken in the evening.

How much water should I drink with phentermine?

When taking phentermine you should be drinking at least 8 glasses of water per day in order to improve the functions of your body and assist in the release of water weight, as well as keeping you hydrated and less likely to misinterpret thirst for hunger.

Can I take my vitamins with phentermine?

Phentermine may interact with other medications. Phentermine oral capsule can interact with other medications, vitamins, or herbs you may be taking. An interaction is when a substance changes the way a drug works. This can be harmful or prevent the drug from working well.

Can you take 2 phentermine a day?

Do not take two doses at one time. Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of phentermine can be fatal.

What happens when you stop taking phentermine?

Behavioural symptoms can also occur during diet pill withdrawal. You may not seem like yourself after you abruptly stop taking the pills. You may experience nervousness, anxiety and irritability. Depression can also set in, accompanied by fatigue and insomnia.

Can phentermine affect your kidneys?

Phentermine can cause elevation of the blood pressure and this can hasten the deterioration of kidney function.

Why is phentermine making me tired?

Fatigue or tiredness can come as a result of sleepless nights or following a period of over-stimulation, however, adverse effects of phentermine also include drowsiness, fatigue, and reduced energy levels.

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What happens if you take phentermine too long?

Physical and psychological dependence may occur with the long-term use of phentermine. A withdrawal reaction, which includes excessive drowsiness, fatigue, tremors and depression may occur after prolonged use.

Is it OK to skip a day of phentermine?

What should I do if I missed a dose of Phentermine (Lomaira)? Take the medicine as soon as you can, but skip the missed dose if it is late in the day. Do not take two doses at one time.

How much weight can you lose in a month on phentermine?

Effective for Weight Loss

The expected average weight loss with phentermine use is 5% of your initial body weight. Yet, over 12 weeks, it can be as high as 10%. This equates to a weight loss of 10–20 pounds (4.5–9 kg) for a 200 pound (90.7 kg) person ( 8 ).

How should I take phentermine for best results?

Swallow the tablet whole. Do not crush, break, or chew it. Carefully follow your doctor’s instructions for a reduced-calorie diet plan and regular exercise. Talk with your doctor before starting an exercise program.

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