Causes include
- Mental health concerns (e.g. stress, anxiety, past sexual abuse)
- Relationship conflict
- Inadequate stimulation
- Behavioral factors such as alcohol and smoking
- HPA dysfunction (see investigations, below)
- Drug side effects
- SSRIs (see below)
- Antihistamines
- Anticholinergics
- Antihypertensives
- Underlying medical conditions/chronic illness particularly involving vascular and neurologic systems (e.g. diabetes, MS)
- Postpartum period
- Menopause
- Vulvovaginal atrophy
Hypothalamic/pituitary axis investigations:
- TSH
- Estrogen
- Progesterone
- FSH
- LH
- PRL
- Testosterone
Often the side-effect of SSRIs
- With the exception of Viibryd (vilazodone)
- Any drug with mostly serotonin-enhancing effects will have worse sexual dysfunction.
- Alternative drugs that are multi-modal are better
- Better alternatives include:
- SNRIs, particularly duloxetine (Cymblata) or Levomilnacipran (Fetzima)
- Mirtazepine (Remeron)
- Addition of Bupropion (Wellbutrin)
- Trintellix (Vortioxetine)
Treatment
- Optimize everything
- Medication review/substitution
- Combine things
- Many women will need topical estrogen + moisturizer + lubricant
- Consider pharmacotherapy
- HRT
- Testosterone
- PDE-5i doesn't work unless diabetic with neuropathy
- Daily moisturizer with RepaGyn (or Replens, Gynatrof, HLA, coconut oil or other alternatives-if preferred) is strongly encouraged
- Generous use of lubricant with sexual activity (silicone or water-based, both are fine). Encourage patient to explore options and "see what works best".
- Topic conjucated estrogen trial (cream, ring, pill)
- If using premarin vaginal cream specifically, treatment can be applied both externally and internally. Application daily for 14 days then twice weekly adjusted depending on response.
- Topical anesthetic if the problem is pain only in order to initiate intercourse in order to "get things started"/"get over the hump"
- Other topicals for pain
- Diclofenac 10-15%
- Gabapentin 3-6%
- Ketoprofen 5-10%
- Baclofen 2%
- Amitriptyline 2-4%
- Clobetasol ointment if lichen sclerosis
- Trial of self-stimulation
- Trial of dilatory therapy -- slow and progressive especially in combination with treatment of atrophic urogenital tissue
If post-menopausal female who previously had a functional libido:
- HRT (E+P)
- If no improvement then consider adding (must be on HRT if uterus is intact):
- Supplemental testosterone (off-label; consider a half-pump of Androgel every 2nd day)
- "Testosterone is effective in menopausal women with low sexual desire, causing distress, with administration via non-oral routes.. because of [their] neutral lipid profile."
- Side effects can include:
- Acne
- Virilization (e.g. lower voice, hair growth)
- Nothing serious in one meta analysis
- Can follow with serial Total testosterone levels
References:
- Calm, Cool, Disgruntedly Collected: Female sexual interest / arousal disorder -- Presented by Ted Jablonski, FMF 2022