Take 1 capsule 1 to 3 times daily, or as directed by your healthcare practitioner.

L-Carnitine (Carnipure) from L-Carnitine Tartrate
According to WebMD:
Acetyl-L-carnitine is LIKELY SAFE for most adults. It can cause some side effects including stomach upset, nausea, vomiting, and restlessness. It can cause a "fishy" odor of the urine, breath, and sweat.
Studies:
Mild gastrointestinal symptoms have been reported at higher levels of intake.
Individuals with thyroid disease, or taking thyroid hormone replacement should consult a physician prior to using L-carnitine.
It may also interact with anti-arrhythmic drugs, such as propafenone and mexiletine, as well as anticoagulant medications.
Pregnant/nursing women should consult their healthcare practitioner before taking this product.
Do Not Eat Freshness Packet. Keep in Bottle.