I was in the medicine section of a Boots recently and I overheard a lady asking for Solpadeine for her period pains (yes I heard the entire consultation, no privacy at all). After an interrogation where she was offered other products that she claimed she had tried before and that they did not work for her - she was refused the solpadeine and left empty handed.
Boots seem to be particularly rigorous. I popped in one morning on my way to work to buy neurofen plus, I suffer from very bad period pain. I was quizzed by the male pharmacist at the counter, I then asked him for feminax. He wasn't keen to give me this either but did sell it to me. I only need to take 2/4 painkillers every month/couple of months depending and I didn't appreciate the quizzing about period pain at the counter.