Quinine may help please read the text below before taking it.
‘Quinine should not be considered a routine treatment for nocturnal leg cramps, and should only be considered when cramps cause regular disruption of sleep. Before use for nocturnal leg cramps, the risks should be carefully considered relative to the potential benefits. Quinine should only be considered:
when cramps are very painful or frequent
when other treatable causes of cramp have been ruled out
when non-pharmacological measures have not worked (eg, passive stretching exercises)
A reduction in frequency of leg cramps may take up to 4 weeks to become apparent. Patients should be monitored closely during the early stages of treatment for adverse effects. After an initial trial of 4 weeks, treatment should be stopped if there is no benefit. Treatment should be interrupted approximately every 3 months to reassess the benefit. In patients taking quinine long term, a trial discontinuation may be considered.
Summaries of product characteristics and patient information leaflets are being updated, and should be consulted for safety information’
You can purchase quinine in some countries such as Canada but I don’t think it can be purchased in the .
My strong recommendation is that you consult your doctor before taking quinine because there are other treatments available and your doctor will be able to prescribe these.
I kniw what night cramps are like as I suffer from them myself especially my legs and feet.