The reason behind its preference is that it is less painful and convenient to be administered by pet owners at home after doing proper practice
Length of treatment and patient adherence to taking medication are also important
What most guides get wrong is assuming you already understand the relationship between milligrams, milliliters, and syringe units
With dose reduction, the timeline is not well documented but would be expected to fall somewhere between discontinuation and continued use

Migraine Symptoms can include: Head-throbbing pain Pain on one side of the head Hypersensitivity to light and sound Nausea Dizziness Pain worsens with activity Vomiting (uncommon) Treatments can include: Regular Exercise Relaxation therapy NSAIDs (aspirin, ibuprofen, etc.) Melatonin, Vitamin B12, Magnesium, Coenzyme Q-10 supplements Prescribed oral or intranasal triptans (serotonin stimulators that alleviate headaches) Antidepressants such as amitriptyline Anticonvulsant (anti-seizure) drugs Botox injections Tension Stress headache Symptoms can include: Usually mild to moderate pain Band-like pressure around the head or forehead Joints in the jaw may be irritated, cramped or aching (could also be TMJ headache) Usually NO nausea Usually NO hypersensitivity to stimuli Treatments can include: Exercise Relaxation therapy Acupuncture NSAIDs (aspirin, ibuprofen, etc.) Muscle trigger point therapies Cervicogenic headache Symptoms can include: Neck pain Pain around the eye Dizziness Blurred vision Balance problems Poor concentration or memory Treatments can include: Physical therapy, primarily working on muscles in the neck Cervical (neck area) spine rehabilitation If eye or head movements trigger dizziness, blurred vision, or balance problems, you may consider vestibular therapy and/or vision therapy Steroid injection Neuritic and neuralgic headache Symptoms can include: Sharp, intense stabbing pain around craniocervical junction (where back of the head connects with the neck) Tenderness or numbness upon touching occipital region (back of the head) Pain behind the eyes Neck pain Treatments can include: NSAIDs (aspirin, ibuprofen, etc.) Topical pain medications Antidepressants Cryoneurolysis (nerve block) Steroid injection Anticonvulsants TMJ Headache Symptoms can include: Jaw pain Restricted jaw movement Clicking when jaw opens Tight facial or jaw muscles Earache Treatments can include: Avoid chewing hard foods Bite plate/night guard TMJ trigger point massage NSAIDs (aspirin, ibuprofen, etc.) Ultrasound therapy Psychological treatments Having chronic headaches can contribute to anxiety, depression, and post-traumatic stress disorder, which can proliferate or worsen future headaches
