Meridia (Sibutramine HCI) is a prescription medication that's used to help people lose weight by acting on the appetite control centers in the brain.
Possible side effects
Side effects that may occur while taking this medicine include headache, back pain, constipation, increased appetite, nausea, dry mouth, trouble sleeping, or dizziness. If they continue or are bothersome, check with your doctor. Check with your doctor as soon as possible if you experience rash, hives, seizures, worsening of vision or vision changes, decreased amount of urine, or unusual bruising or bleeding. Contact your doctor immediately if you experience the following side effects or symptoms of toxicity: excitement; restlessness; loss of consciousness; confusion; agitation; weakness; shivering; clumsiness or unsteadiness; fast or irregular heartbeat; large, unchanging pupils; vomiting; one-sided weakness, trouble breathing; shortness of breath; chest pain; swelling of feet, ankles, or legs; fainting; disorientation; depression; stomach pain; high fever; eye pain; tremor; or increased sweating. If you notice other effects not listed above, contact your doctor, nurse, or pharmacist.
I think the Phentermine is a better option and it makes you feel good.