TABLE 3.

Self-reported cannabis side effects classified by body system and prevalence.

Side Effects	(n, %)
drowsiness/tiredness (N)	25, 3%
high (N)	13, 2%
brain fog (N)	10, 1%
anxiety (N); interfere with function (G); dizziness (G)	8, 1%
headache (N)	7, 1%
stomach upset (D); overdose (NA); nausea (D)	5, 1%
overeating / increased appetite (D); paranoia (N)	4, 0.5%
confusion (N); constipation (EX); insomnia (N); loss of motivation (N); memory problems (N); palpitations (C); general psychotropic effects (N)	3, 0.4%
diarrhea (EX); medication interference (G); agitation (N); bad dreams (N); hypersomnia (N); hypersensitivity (N); irritability (N); itchiness (IN); sore throat (RS); urinary incontinence (EX); weight gain (G); withdrawn (N); cannabis/medication combined side effects (NA)	2, 0.2%
cannabinoid withdrawal (N); psychotic episode (N); chapped lips/picking lips (IN); depression (N); dronabinol affects liver enzymes (C); dry eyes (N); dry mouth (D); ears ringing (N); elevated blood pressure (C); eye/vision problems (N); eye pain (N); hangover (G); hyperactivity (N); loss of appetite (D); mind racing (N); night sweat (G); desire for sweets (D); pain (G); possibly affecting menstrual cycle (RP); restlessness (N); sleep disruption (N); spasms (M); visual disturbances (N); vivid dreams (N); alters other medication absorption (EN); nerve problems/pain in combo w/meds (N); swelling in combo w/meds (G)	1, 0.1%

Note: Body systems cited as follows. Skeletal = S; muscular = M; circulatory = C; immune = IM; digestive = D; endocrine = EN; nervous = N; respiratory = RS; excretory = EX; reproductive = RP; integumentary = IN; general/other = G; not applicable = NA.