Andre mindre hyppigt forekommende bivirkninger (mellem 1 og 10 ud af 100 behandlede) i forbindelse med interferon beta inkluderer diarré, appetitløshed, opkastning, søvnløshed, svimmelhed, uro, kløe, udslæt, karudvidelse, hjertebanken, uregelmæssigheder og/ eller ændringer i menstruationen og alvorlige hud - og slimhindereaktioner Meget sjældent (mindre end 1 ud af 10. 000 patienter) forekommer der alvorlige allergiske reaktioner.
Other less common adverse events (between 1 and 10 patients out of 100 treated) reported in association with interferon beta include diarrhoea, loss of appetite, vomiting, sleeping difficulty, dizziness, nervousness, itching, rash, nettle-rash, hair loss, dilatation of the blood vessels and palpitation, irregularities and/or changes in menstrual flow and serious reactions of the skin and mucous membranes.