Table 1 Adverse effects associated with current obesity treatment drug delivery information.

From: Role of pancreatic lipase inhibition in obesity treatment: mechanisms and challenges towards current insights and future directions

Name (FDA approval)

Used term

Principle

Delivery mode

Side effect

Phentermine (Adipex, Lomaira) [93]

Short-term (3 months)

Reduces hunger cravings

30 mg/day (Capsule/Tablet)

Blood pressure disorder

Diethylpropion (Tenuate) [94]

Short term

Adjustment of norepinephrine activity

50 mg/2 times/day

Sleep disorder, xerostomia symptom

Phentermine-topiramate combination (Qsymia) [95]

Long-term (over-the-counter use in the United States)

-Phentermine: Reduces appetite, sympathomimetic amines)

-Topiramate: anticonvulsant or antiepileptic drug

60 mg/3 times/day

Dizzy spell condition, xerostomia symptom, sleep disorder

Orlistat: Alli, Xenical [96]

Long term

Reduces fat absorption

120 mg 3 times/day (Capsule)

Gut disorder

Bupropion-naltrexone (Contrave) [97]

Long term

Decreases appetite, cravings

1 tablet (Bupropion HCI, 90 mg: naltrexone HCI, 8 mg/day up to (360 mg:32 mg)

Bowel problem, xerostomia symptoms, sleep disorder

Liraglutide 3.0 mg (Saxenda) [98]

Long term

Decreases appetite, increases satiety

3 mg/day (Injectable)

Dizzy spell condition, abdominal pain

Gelesis100 (Plenity) [99]

Long term

Increases satiety.

1 dose of 3 oral capsules (2.25 g/dose

Gut problem, abdominal pain, bowel disorder

Setmelanotide (Imciveree) [100]

Long term

Decreases appetite.

2 mg/2 times/day or up to 3 mg (injection option)

Skin irritation at injection area, dizzy spell, sensation problem

Semaglutide 2.4 mg (Wegovy) [101]

Long term

Decreases appetite, increases satiety

0.25, 0.5, 1.7 and 2.4 mg, 1.0 g (Ozempic) Injection (optional tablet mode)

Bowel problem, skin irritation at injection area, dizzy spell

Tirzepatide [102]

Long term

Decreases appetite, increases satiety

5, 10, or 15 mg/weekly

Mild effect due to dose increases