- What other names is 5-htp known by?
- What is 5-htp?
- How does 5-htp work?
- Are there safety concerns?
- Are there any interactions with medications?
- Dosing considerations for 5-htp.
5-HTP is used for sleep disorders, depression, anxiety, migraine and tension-type headaches, fibromyalgia, binge eating associated with obesity, premenstrual syndrome (PMS), premenstrual dysphoric disorder (PMDD), attention deficit-hyperactivity disorder (ADHD), and along with prescription drugs to treat seizure disorder and Parkinson's disease.
Possibly Effective for...
- Depression. Research shows that taking 5-HTP by mouth might improve symptoms of depression. Several trials have found that doses of 50-3000 mg daily for 2-4 weeks can improve symptoms of depression. Some early research also shows that 5-HTP might be as beneficial as conventional antidepressant therapy.
- Fibromyalgia. Taking 5-HTP by mouth appears to improve symptoms of fibromyalgia including pain severity, morning stiffness, and sleeplessness.
Insufficient Evidence to Rate Effectiveness for...
- Alcoholism. Early research shows that taking 5-HTP with D-phenylalanine and L-glutamine for 40 days can reduce alcohol withdrawal symptoms. However, taking 5-HTP with carbidopa daily for one year does not seem to help people stop drinking. The effect of 5-HTP alone for alcoholism is not clear.
- Alzheimer's disease. Early research suggests that taking 5-HTP by mouth does not help symptoms of Alzheimer's disease.
- Anxiety. Evidence on the effects of 5-HTP for anxiety is unclear. Taking up to 300 mg of 5-HTP daily along with carbidopa seems to reduce anxiety symptoms in people with anxiety disorders. However, taking 60 mg of 5-HTP daily through the vein does not reduce anxiety in people with panic disorders.
- Nervous system disorder (Cerebellar ataxia). Evidence on the use of 5-HTP for cerebellar ataxia is unclear. Early evidence shows that taking 5 mg/kg of 5-HTP daily for 4 months can decrease nervous system dysfunction. However, other research shows that taking 5-HTP daily for up to one year does not improve symptoms of cerebellar ataxia.
- Down syndrome. Taking 2 mg/kg of 5-HTP daily for 3 years does not improve muscle movement, social skills, or intellectual development in newborn children with Down syndrome.
- Headache. Evidence on the use of 5-HTP to prevent or treat headache symptoms is unclear. Some research shows that taking 5-HTP daily can reduce headache symptoms in children with headaches. However, other studies show that 5-HTP does not reduce the number or severity of headaches.
- Insomnia. Taking an amino acid formula (Gabadone) containing gamma-aminobutyric acid (GABA) and 5-HTP seems to help people with sleeping problems fall asleep faster and stay asleep longer. The effect of 5-HTP alone on sleeping problems is unclear.
- Menopausal symptoms. Taking 150 mg of 5-HTP daily for 4 weeks does not reduce hot flashes in postmenopausal women.
- Migraine headache. Evidence on the effects of 5-HTP for the prevention or treatment of migraines in adults is unclear. Some studies show that taking 5-HTP daily does not reduce migraines, while other studies show that it might be as beneficial as prescription drugs. 5-HTP does not seem to reduce migraines in children.
- Obesity. Early research suggests that taking 5-HTP might help reduce appetite, caloric intake, and weight in obese people.
- Muscle spasms in the mouth (Palatal myoclonus). Early evidence suggests that taking 5-HTP by mouth might reduce muscle spasms in people with palatal myoclonus.
- Premenstrual syndrome (PMS).
- Premenstrual dysphoric disorder (PMDD).
- Attention deficit-hyperactivity disorder (ADHD).
- Other conditions.
Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).
Next: How does 5-htp work?
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