Prachi Agarwala, MD Psychiatry Resident, PGY-V, Department of Psychiatry, University of Michigan, Ann Arbor, MI Michelle B. Riba, MD, MS Clinical Professor, Department of Psychiatry, University of Michigan, Ann Arbor, MI
Tricyclics can be effective in breast cancer patients but anticholinergic effects limit their use
Tricyclic antidepressants have been demonstrated to be effective in breast cancer patients. Side effects—notably anticholinergic effects—limit their use as antidepressants, especially when compared with SSRI treatment. In a study that randomly assigned 179 women with breast cancer to paroxetine, 20 to 40 mg/d, or amitriptyline, 75 to 150 mg/d, anticholinergic effects were almost twice as frequent in the amitriptyline group (19%) compared with paroxetine (11%).38 In a 4-week double-blind, placebo-controlled crossover trial of 15 breast cancer patients, amitriptyline significantly relieved neuropathic pain, but its adverse effects made most patients unwilling to use the medication regularly.39
Table 2
Evidence supporting SSRI use in patients with breast cancer*
62 women with early-stage breast cancer receiving the chemotherapy agent tamoxifen who reported hot flashes were randomized to sertraline, 50 mg/d, or placebo for 6 weeks
Sertraline was significantly more effective than placebo at reducing hot flashes
* Breast cancer patients who receive tamoxifen generally should be treated with an antidepressant that has minimal effect on cytochrome P450 2D6 metabolism, such as citalopram, escitalopram, venlafaxine, or desvenlafaxine SSRIs: selective serotonin reuptake inhibitors
National Comprehensive Cancer network. www.nccn.org.
Drug Brand Names
Amitripyline • Elavil
Citalopram • Celexa
Desvenlafaxine • Pristiq
Escitalopram • Lexapro
Fluoxetine • Prozac
Paroxetine • Paxil
Sertraline • Zoloft
Tamoxifen • Nolvadex
Venlafaxine • Effexor
Disclosure
The authors report no financial relationship with any company whose products are mentioned in this article or with manufacturers of competing products.