THREONINE Overview Information
Threonine is an amino acid. Amino acids are the building blocks the body uses to make proteins.
Threonine is used to treat various nervous system disorders including spinal spasticity, multiple sclerosis, familial spastic paraparesis, and amyotrophic lateral sclerosis (ALS, Lou Gehrig's disease).
How does it work?
Possibly Effective for:
- Spinal spasticity.
Possibly Ineffective for:
- Amyotrophic lateral sclerosis (Lou Gehrig's disease). Taking 2 grams to 4 grams of threonine daily for up to 12 months does not seem to slow the progression of ALS or reduce symptoms. There is also some evidence that threonine might actually worsen lung function in people with ALS.
- Familial spastic paraparesis, a hereditary disorder. Early research suggests that taking 1.5 grams to 2 grams of threonine by mouth three times daily might improve some symptoms in people with familial spastic paraparesis. But the improvement does not seem to be very significant.
- Multiple sclerosis. Early research suggests that taking 2.5 grams of threonine by mouth three times daily for 8 weeks does not reduce muscle stiffness (spasticity) in people with MS.
- Spinal spasticity, a movement disorder caused by spinal cord damage. Early research suggests that taking 2 grams of threonine by mouth three times daily modestly decreases muscle contractions in people with spinal spasticity caused by spinal cord injury.
- Multiple sclerosis.
- Other conditions.
THREONINE Side Effects & Safety
Threonine is POSSIBLY SAFE when doses of up to 4 grams daily are taken by mouth for up to 12 months. Some people experience minor side effects such as stomach upset, headache, nausea, and skin rash.
Special Precautions & Warnings:Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking threonine if you are pregnant or breast-feeding. Stay on the safe side and avoid use.
Amyotrophic lateral sclerosis (Lou Gehrig's disease):There is some concern that threonine might decrease lung function in patients with ALS. In one study, ALS patients taking 1 gram of threonine four times per day for 6 months had significantly reduced lung function compared to patients who did not receive threonine. More evidence is needed to determine if threonine was actually at fault.
Major Interaction Do not take this combination
- Medications used for Alzheimer's disease (NMDA antagonists) interacts with THREONINE
There is some concern that threonine might decrease how well a medication used for Alzheimer's disease works. This medication is called memantine (Namenda).
The following doses have been studied in scientific research:
- For a certain movement disorder due to spinal cord damage (spinal spasticity): 6 grams of threonine per day.