How does a sumatriptan 3-mg auto-injector on the market compare in terms of tolerability and efficacy to treat an episodic migraine attack compared to 6-mg formulations?

Dr. Reddy's Laboratories announced the launch of Sumatriptan Injection Autoinjector System for Subcutaneous Use, the generic version of GlaxoSmithKline's Imitrex STATdose Pen.