Can women take tadalafil (Cialis) and what are the effects?
Women should not take tadalafil (Cialis) for sexual dysfunction: it is not approved, the evidence is lacking, and off-label use carries risks like a blood-pressure drop.
Women should not take tadalafil (Cialis) for sexual dysfunction: it is not approved for that use, because there is not enough research to show it is effective or safe for women. Tadalafil is a vasodilator developed for men's erectile dysfunction and for certain other conditions, and taking it off-label carries real risks — chiefly an excessive drop in blood pressure. Any woman considering it should speak to a doctor first.
The question comes up because tadalafil improves blood flow, and some assume that effect might benefit female sexual function too. The reality is more complicated: female sexual response is not simply a blood-flow problem, and the evidence does not support using Cialis this way.
What tadalafil is — and is approved for
Tadalafil, sold as Cialis, is used mainly in men to treat erectile dysfunction and the symptoms of benign prostatic hyperplasia (an enlarged prostate). It is also approved to treat pulmonary arterial hypertension in both men and women, where it improves exercise capacity and reduces the strain on the heart. So tadalafil is used in women — but for a lung and heart condition, not for sexual dysfunction.
Is Cialis approved for female sexual dysfunction?
No. Cialis has not been approved for treating sexual dysfunction in women, because there is not enough research to establish its efficacy and safety for that purpose. For this reason it is not recommended for women to use Cialis to address sexual problems. While a handful of small studies have looked at tadalafil's effect on components of female sexual dysfunction (FSD), the findings are not strong or consistent enough to justify routine use.
| Use of tadalafil | Status in women |
|---|---|
| Pulmonary arterial hypertension | Approved for men and women |
| Female sexual dysfunction | Not approved; not recommended |
| Off-label sexual use | Unproven and potentially risky |
The risks for women taking tadalafil
Because tadalafil is a vasodilator, its main risk is lowering blood pressure. In a woman taking it without medical supervision, this can cause dizziness, fainting and a dangerous fall in blood pressure, especially if she also takes nitrates or blood-pressure medication. Other possible adverse reactions mirror those seen in men — headache, flushing, indigestion and back pain. During sexual activity, warning signs such as chest pain, severe dizziness or fainting should prompt stopping and seeking medical help. For a balanced external perspective on the question, this overview of tadalafil use in women reaches the same cautious conclusion.
Why female sexual response is different
Erectile dysfunction in men is largely a blood-flow problem, which is why drugs that improve circulation help. Female sexual function is more complex, involving desire, arousal, lubrication and psychological factors as much as blood flow. That is why a vasodilator like tadalafil does not translate neatly to women, and why treatments designed specifically for women work differently. Women who experience sexual difficulties have their own recognised conditions, which we discuss in our article on whether women can experience erectile dysfunction.
What women are sometimes prescribed instead
For women experiencing low desire or arousal difficulties, there are treatments designed specifically for female physiology, rather than a drug borrowed from male erectile dysfunction. Some are aimed at desire, others at the hormonal or psychological factors involved. The important contrast is that these options were developed and tested in women, whereas tadalafil was not — its approval in women is limited to pulmonary arterial hypertension. This is why a doctor will reach for an evidence-based, women-specific approach instead of Cialis when the problem is sexual rather than cardiopulmonary.
It is also worth dispelling the assumption behind the question. People often imagine that because tadalafil "improves blood flow," it should improve female arousal the same way it helps male erections. But female sexual response is not primarily a mechanical blood-flow event; desire, hormones, mood and context play a much larger role. A drug that works on one specific vascular mechanism in men simply does not map neatly onto that more complex picture — which is exactly why the research has not supported it and why the regulators have not approved it.
The safe approach
If a woman is experiencing sexual difficulties, the right step is a conversation with a doctor, not borrowing a partner's Cialis. A clinician can identify the underlying cause and recommend an appropriate, evidence-based option. Self-medicating with a drug designed for male physiology — and not approved for female sexual dysfunction — risks side effects without proven benefit. For context on how these drugs work and their limits, see our guide to medications for ED and our guide to erectile dysfunction and male sexual health.
Frequently asked questions
- Can women take Cialis for low libido?
- No. It is not approved or recommended for female sexual dysfunction, and the evidence does not support it.
- Is tadalafil ever prescribed to women?
- Yes, but for pulmonary arterial hypertension — a heart and lung condition — not for sexual problems.
- What are the risks of a woman taking tadalafil?
- Mainly a drop in blood pressure causing dizziness or fainting, plus headache and flushing, with no proven sexual benefit.