How long until it works?

One of the most common questions about any treatment is simply: when will I feel better?Here are typical timelines for common menopause and hormone treatments — so you know what to expect and when it's worth reviewing. These are general estimates, not a dosing guide; everyone responds differently.

HRT for hot flashes & night sweats

Systemic hormone therapy is the most effective treatment for vasomotor symptoms, but it isn't instant.

First 2–4 weeks
Many people notice hot flashes and night sweats easing.
By ~8–12 weeks
Fuller effect; a dose or type may be adjusted if symptoms persist.
At ~3 months
A typical point to review benefits, side effects, and whether to continue.

Timelines are typical, not guaranteed — give it a fair trial and don't stop early without talking to your clinician.

About HRT Source: The Menopause Society

Vaginal estrogen for dryness

Low-dose vaginal estrogen treats dryness and related symptoms locally.

First few weeks
Some improvement in dryness and comfort begins.
By ~8–12 weeks
Fuller benefit for the vaginal tissues; often continued long-term.

It acts locally with very little absorbed into the bloodstream. Consistency matters more than speed.

About vaginal dryness Source: NHS

Fezolinetant (Veozah) for hot flashes

Fezolinetant is a non-hormonal option that blocks a brain pathway involved in hot flashes.

First 1–4 weeks
Reduction in the frequency and severity of hot flashes for many people.
Ongoing
Liver monitoring is part of treatment; effect is reviewed with your clinician.

Requires periodic liver-function monitoring. Never start or stop on your own — this is not a dosing guide.

Fezolinetant vs. HRT Source: The Menopause Society

SSRIs / SNRIs for hot flashes

Certain antidepressants are an evidence-based non-hormonal option for hot flashes.

First 1–2 weeks
Hot-flash benefit often appears faster than the antidepressant effect on mood.
By ~4 weeks
A clinician reviews whether it's helping and any side effects.

Used at the clinician's discretion; some interact with other medicines. Don't start or stop without advice.

HRT vs. antidepressants Source: The Menopause Society

Levothyroxine for an underactive thyroid

Levothyroxine replaces the thyroid hormone your body is missing.

First few weeks
Energy and other symptoms gradually start to improve.
At ~6–8 weeks
TSH is usually rechecked to see whether the dose needs adjusting.
Over months
Symptoms continue to settle as levels stabilise.

Finding the right dose can take a few adjustments. Keep up follow-up blood tests.

Understand a TSH result Source: American Thyroid Association

Give any treatment a fair trial before judging it, and use your follow-up appointments to review what's working. To track how your symptoms change, try the menopause symptom score or the symptom diary.