The positive effects of ibogaine are similar to other psychedelic drugs, but the psychedelic experience can be more intense with greater discomfort. The effects are quite dose-dependent and highly influenced by the factors such as set, setting, and the user’s intention.

The positive effects of ibogaine include:
Stimulation
Euphoria
Spiritual insights
Visuals – open and closed eyes
Mood enhancement
Pain relief

Psychological and Emotional Effects
Ibogaine is a powerful psychedelic with a high degree of intensity. Some of the psychological effects of ibogaine include:

Re-experiencing traumatic memories
Auditory and visual hallucinations
Autobiographical memories
Oneirogenic (“dream-like”) states
Acute fear and distress
Encounters with animals or entities

Ibogaine is a naturally occurring psychoactive alkaloid found in iboga plants. The highest concentration of ibogaine occurs in the inner root bark of the West African shrub Tabernanthe iboga. Used in West Africa for thousands of years for religious and ritual purposes, iboga features prominently in the ceremonies of West Africa’s Bwiti people.

Beyond ceremonial use, ibogaine has attracted attention for disrupting addiction disorders and reducing withdrawal symptoms.

Pharmacology: What Does Ibogaine Do to My Brain?
Ibogaine can help lessen the withdrawal effects of opioids by blocking the receptors responsible for opioid cravings and withdrawal symptoms. These effects are unique compared to classical psychedelics like LSD and psilocybin.

Beyond anti-addictive properties, ibogaine also induces powerful psychedelic experiences. The duration of effects last much longer than the classical psychedelics. With a heavy dose, it can last as long as three days, it typically causes a 24+ hour experience. The typical dose of ibogaine for a psychedelic effect is 15-20 mg per kg.

Negative Effects
Nausea
Dizziness
Increased heartbeat
Lack of muscle coordination
Vomiting
Anxiety
Bradycardia
High or low blood pressure
Death from cardiac arrest

Full article: https://psychedelic.support/resources/ibogaine-substance-guide/