"Dr. Michael T Murry, the author of 5-HTP The Natural Way To Boost Serotonin and Overcome Depression, Obesity and Insomnia" writes this...
"For depression... the dosage should be started at 50 mg three times per day. If the response is inadequate after two weeks, increase the dosage to 100 mg three times per day. This recommendation will greatly reduce the mild symptoms of nausea often experienced during the first few weeks of 5-HTP therapy. Using enteric-coated capsules or tablets (pills prepared in a manner so that they will not dissolve in the stomach) significantly reduces the likelihood of nausea. Because 5-HTP does not rely on the same transport vehicle as L-tryptophan, it can also be taken with food."