Obesan X (phendimetrazine) can cause a range of side effects, from mild to severe. Common side effects include dizziness, dry mouth, nausea, headache, constipation or diarrhea, increased sweating or urination, and difficulty sleeping[1][3][4].
Some patients may experience more severe side effects that require immediate medical attention, such as:
- Chest pain or discomfort
- Fast, irregular, pounding, or racing heartbeat
- Shortness of breath
- Swelling of the feet or lower legs
- Fainting
- Trouble breathing
- Severe mental changes or hallucinations
- Tremors and severe agitation
- Restlessness and unusual changes in mood or behavior
- Severe allergic reactions (e.g., swelling of the face or throat, difficulty breathing, rash, or hives)
There is also a risk of rare but serious conditions, including pulmonary hypertension (high blood pressure in the arteries of the lungs) and heart valve problems, which can be life-threatening[4][5]. Symptoms of these may include chest pain, persistent shortness of breath, severe swelling, and fainting.
Overdoses of phendimetrazine can cause symptoms such as severe confusion, panic, hallucinations, rapid or irregular heartbeat, convulsions, and loss of consciousness. Overdose can be fatal and requires emergency medical attention[3][1].